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Finding the Fourth Proportional to 123,718.46, 186,504.77 and 115,479.23

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Solution

The fourth proportional to 123,718.46, 186,504.77 and 115,479.23 is: 174,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,718.46 : 186,504.77 = 115,479.23 : x
  2. Step 2: Convert to fraction form
    123,718.46/186,504.77 = 115,479.23/x
  3. Step 3: Cross multiply
    123,718.46x = 186,504.77 × 115,479.23
  4. Step 4: Simplify right side
    123,718.46x = 21,537,427,985.89
  5. Step 5: Solve for x
    x = 21,537,427,985.89/123,718.46
  6. Step 6: Final answer
    x = 174,084.20

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