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Finding the Fourth Proportional to 7,712.26, 11,568.86 and 4,784.42

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Solution

The fourth proportional to 7,712.26, 11,568.86 and 4,784.42 is: 7,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.26 : 11,568.86 = 4,784.42 : x
  2. Step 2: Convert to fraction form
    7,712.26/11,568.86 = 4,784.42/x
  3. Step 3: Cross multiply
    7,712.26x = 11,568.86 × 4,784.42
  4. Step 4: Simplify right side
    7,712.26x = 55,350,285.16
  5. Step 5: Solve for x
    x = 55,350,285.16/7,712.26
  6. Step 6: Final answer
    x = 7,176.92

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