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Finding the Fourth Proportional to 8,590.18, 12,873.84 and 5,624.86

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Solution

The fourth proportional to 8,590.18, 12,873.84 and 5,624.86 is: 8,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.18 : 12,873.84 = 5,624.86 : x
  2. Step 2: Convert to fraction form
    8,590.18/12,873.84 = 5,624.86/x
  3. Step 3: Cross multiply
    8,590.18x = 12,873.84 × 5,624.86
  4. Step 4: Simplify right side
    8,590.18x = 72,413,547.66
  5. Step 5: Solve for x
    x = 72,413,547.66/8,590.18
  6. Step 6: Final answer
    x = 8,429.81

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