Finding the Fourth Proportional to 8,123.31, 12,184.17 and 5,507.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.31 : 12,184.17 = 5,507.62 : x
2. Step 2: Convert to fraction form
   8,123.31/12,184.17 = 5,507.62/x
3. Step 3: Cross multiply
   8,123.31x = 12,184.17 × 5,507.62
4. Step 4: Simplify right side
   8,123.31x = 67,105,778.38
5. Step 5: Solve for x
   x = 67,105,778.38/8,123.31
6. Step 6: Final answer
   x = 8,260.89