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Finding the Fourth Proportional to 23,718.76, 32,731.64 and 13,108.40

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Solution

The fourth proportional to 23,718.76, 32,731.64 and 13,108.40 is: 18,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,718.76 : 32,731.64 = 13,108.40 : x
  2. Step 2: Convert to fraction form
    23,718.76/32,731.64 = 13,108.40/x
  3. Step 3: Cross multiply
    23,718.76x = 32,731.64 × 13,108.40
  4. Step 4: Simplify right side
    23,718.76x = 429,059,429.78
  5. Step 5: Solve for x
    x = 429,059,429.78/23,718.76
  6. Step 6: Final answer
    x = 18,089.45

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