Finding the Fourth Proportional to 13,098.69, 18,082.38 and 8,385.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,098.69 : 18,082.38 = 8,385.72 : x
2. Step 2: Convert to fraction form
   13,098.69/18,082.38 = 8,385.72/x
3. Step 3: Cross multiply
   13,098.69x = 18,082.38 × 8,385.72
4. Step 4: Simplify right side
   13,098.69x = 151,633,775.61
5. Step 5: Solve for x
   x = 151,633,775.61/13,098.69
6. Step 6: Final answer
   x = 11,576.26