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Finding the Fourth Proportional to 18,725.44, 28,086.30 and 4,874.44

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Solution

The fourth proportional to 18,725.44, 28,086.30 and 4,874.44 is: 7,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.44 : 28,086.30 = 4,874.44 : x
  2. Step 2: Convert to fraction form
    18,725.44/28,086.30 = 4,874.44/x
  3. Step 3: Cross multiply
    18,725.44x = 28,086.30 × 4,874.44
  4. Step 4: Simplify right side
    18,725.44x = 136,904,984.17
  5. Step 5: Solve for x
    x = 136,904,984.17/18,725.44
  6. Step 6: Final answer
    x = 7,311.18

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