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Finding the Fourth Proportional to 5,864.76, 8,788.68 and 5,687.28

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Solution

The fourth proportional to 5,864.76, 8,788.68 and 5,687.28 is: 8,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,864.76 : 8,788.68 = 5,687.28 : x
  2. Step 2: Convert to fraction form
    5,864.76/8,788.68 = 5,687.28/x
  3. Step 3: Cross multiply
    5,864.76x = 8,788.68 × 5,687.28
  4. Step 4: Simplify right side
    5,864.76x = 49,983,683.99
  5. Step 5: Solve for x
    x = 49,983,683.99/5,864.76
  6. Step 6: Final answer
    x = 8,522.72

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