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Finding the Fourth Proportional to 22,716.62, 31,348.61 and 12,645.05

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Solution

The fourth proportional to 22,716.62, 31,348.61 and 12,645.05 is: 17,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.62 : 31,348.61 = 12,645.05 : x
  2. Step 2: Convert to fraction form
    22,716.62/31,348.61 = 12,645.05/x
  3. Step 3: Cross multiply
    22,716.62x = 31,348.61 × 12,645.05
  4. Step 4: Simplify right side
    22,716.62x = 396,404,740.88
  5. Step 5: Solve for x
    x = 396,404,740.88/22,716.62
  6. Step 6: Final answer
    x = 17,449.99

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