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Finding the Fourth Proportional to 7,069.80, 10,591.90 and 5,764.20

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Solution

The fourth proportional to 7,069.80, 10,591.90 and 5,764.20 is: 8,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.80 : 10,591.90 = 5,764.20 : x
  2. Step 2: Convert to fraction form
    7,069.80/10,591.90 = 5,764.20/x
  3. Step 3: Cross multiply
    7,069.80x = 10,591.90 × 5,764.20
  4. Step 4: Simplify right side
    7,069.80x = 61,053,829.98
  5. Step 5: Solve for x
    x = 61,053,829.98/7,069.80
  6. Step 6: Final answer
    x = 8,635.86

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