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Finding the Fourth Proportional to 7,863.12, 11,793.84 and 4,932.72

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Solution

The fourth proportional to 7,863.12, 11,793.84 and 4,932.72 is: 7,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.12 : 11,793.84 = 4,932.72 : x
  2. Step 2: Convert to fraction form
    7,863.12/11,793.84 = 4,932.72/x
  3. Step 3: Cross multiply
    7,863.12x = 11,793.84 × 4,932.72
  4. Step 4: Simplify right side
    7,863.12x = 58,175,710.44
  5. Step 5: Solve for x
    x = 58,175,710.44/7,863.12
  6. Step 6: Final answer
    x = 7,398.55

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