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Finding the Fourth Proportional to 17,742.69, 26,599.59 and 6,643.15

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Solution

The fourth proportional to 17,742.69, 26,599.59 and 6,643.15 is: 9,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,742.69 : 26,599.59 = 6,643.15 : x
  2. Step 2: Convert to fraction form
    17,742.69/26,599.59 = 6,643.15/x
  3. Step 3: Cross multiply
    17,742.69x = 26,599.59 × 6,643.15
  4. Step 4: Simplify right side
    17,742.69x = 176,705,066.31
  5. Step 5: Solve for x
    x = 176,705,066.31/17,742.69
  6. Step 6: Final answer
    x = 9,959.32

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