Finding the Fourth Proportional to 11,653.39, 16,082.85 and 7,115.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,653.39 : 16,082.85 = 7,115.82 : x
2. Step 2: Convert to fraction form
   11,653.39/16,082.85 = 7,115.82/x
3. Step 3: Cross multiply
   11,653.39x = 16,082.85 × 7,115.82
4. Step 4: Simplify right side
   11,653.39x = 114,442,707.72
5. Step 5: Solve for x
   x = 114,442,707.72/11,653.39
6. Step 6: Final answer
   x = 9,820.55