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Finding the Fourth Proportional to 12,613.74, 18,923.04 and 4,293.42

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Solution

The fourth proportional to 12,613.74, 18,923.04 and 4,293.42 is: 6,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.74 : 18,923.04 = 4,293.42 : x
  2. Step 2: Convert to fraction form
    12,613.74/18,923.04 = 4,293.42/x
  3. Step 3: Cross multiply
    12,613.74x = 18,923.04 × 4,293.42
  4. Step 4: Simplify right side
    12,613.74x = 81,244,558.40
  5. Step 5: Solve for x
    x = 81,244,558.40/12,613.74
  6. Step 6: Final answer
    x = 6,440.96

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