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Finding the Fourth Proportional to 8,633.59, 12,942.48 and 4,190.33

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Solution

The fourth proportional to 8,633.59, 12,942.48 and 4,190.33 is: 6,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.59 : 12,942.48 = 4,190.33 : x
  2. Step 2: Convert to fraction form
    8,633.59/12,942.48 = 4,190.33/x
  3. Step 3: Cross multiply
    8,633.59x = 12,942.48 × 4,190.33
  4. Step 4: Simplify right side
    8,633.59x = 54,233,310.29
  5. Step 5: Solve for x
    x = 54,233,310.29/8,633.59
  6. Step 6: Final answer
    x = 6,281.67

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