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Finding the Fourth Proportional to 8,836.28, 13,238.84 and 4,667.09

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Solution

The fourth proportional to 8,836.28, 13,238.84 and 4,667.09 is: 6,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.28 : 13,238.84 = 4,667.09 : x
  2. Step 2: Convert to fraction form
    8,836.28/13,238.84 = 4,667.09/x
  3. Step 3: Cross multiply
    8,836.28x = 13,238.84 × 4,667.09
  4. Step 4: Simplify right side
    8,836.28x = 61,786,791.58
  5. Step 5: Solve for x
    x = 61,786,791.58/8,836.28
  6. Step 6: Final answer
    x = 6,992.40

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