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Finding the Fourth Proportional to 7,772.76, 11,661.57 and 5,925.96

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Solution

The fourth proportional to 7,772.76, 11,661.57 and 5,925.96 is: 8,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.76 : 11,661.57 = 5,925.96 : x
  2. Step 2: Convert to fraction form
    7,772.76/11,661.57 = 5,925.96/x
  3. Step 3: Cross multiply
    7,772.76x = 11,661.57 × 5,925.96
  4. Step 4: Simplify right side
    7,772.76x = 69,105,997.36
  5. Step 5: Solve for x
    x = 69,105,997.36/7,772.76
  6. Step 6: Final answer
    x = 8,890.79

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