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Finding the Fourth Proportional to 518,412.75, 777,619.13 and 124,428.75

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Solution

The fourth proportional to 518,412.75, 777,619.13 and 124,428.75 is: 186,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,412.75 : 777,619.13 = 124,428.75 : x
  2. Step 2: Convert to fraction form
    518,412.75/777,619.13 = 124,428.75/x
  3. Step 3: Cross multiply
    518,412.75x = 777,619.13 × 124,428.75
  4. Step 4: Simplify right side
    518,412.75x = 96,758,175,699.84
  5. Step 5: Solve for x
    x = 96,758,175,699.84/518,412.75
  6. Step 6: Final answer
    x = 186,643.13

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