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Finding the Fourth Proportional to 215,234.32, 322,853.10 and 74,992.72

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Solution

The fourth proportional to 215,234.32, 322,853.10 and 74,992.72 is: 112,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,234.32 : 322,853.10 = 74,992.72 : x
  2. Step 2: Convert to fraction form
    215,234.32/322,853.10 = 74,992.72/x
  3. Step 3: Cross multiply
    215,234.32x = 322,853.10 × 74,992.72
  4. Step 4: Simplify right side
    215,234.32x = 24,211,632,129.43
  5. Step 5: Solve for x
    x = 24,211,632,129.43/215,234.32
  6. Step 6: Final answer
    x = 112,489.64

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