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Finding the Fourth Proportional to 8,599.69, 12,899.53 and 5,677.31

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Solution

The fourth proportional to 8,599.69, 12,899.53 and 5,677.31 is: 8,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.69 : 12,899.53 = 5,677.31 : x
  2. Step 2: Convert to fraction form
    8,599.69/12,899.53 = 5,677.31/x
  3. Step 3: Cross multiply
    8,599.69x = 12,899.53 × 5,677.31
  4. Step 4: Simplify right side
    8,599.69x = 73,234,566.17
  5. Step 5: Solve for x
    x = 73,234,566.17/8,599.69
  6. Step 6: Final answer
    x = 8,515.96

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