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Finding the Fourth Proportional to 23,718.78, 32,731.70 and 13,108.32

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Solution

The fourth proportional to 23,718.78, 32,731.70 and 13,108.32 is: 18,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,718.78 : 32,731.70 = 13,108.32 : x
  2. Step 2: Convert to fraction form
    23,718.78/32,731.70 = 13,108.32/x
  3. Step 3: Cross multiply
    23,718.78x = 32,731.70 × 13,108.32
  4. Step 4: Simplify right side
    23,718.78x = 429,057,532.20
  5. Step 5: Solve for x
    x = 429,057,532.20/23,718.78
  6. Step 6: Final answer
    x = 18,089.36

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