Finding the Fourth Proportional to 11,654.72, 16,082.16 and 7,115.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,654.72 : 16,082.16 = 7,115.12 : x
2. Step 2: Convert to fraction form
   11,654.72/16,082.16 = 7,115.12/x
3. Step 3: Cross multiply
   11,654.72x = 16,082.16 × 7,115.12
4. Step 4: Simplify right side
   11,654.72x = 114,426,498.26
5. Step 5: Solve for x
   x = 114,426,498.26/11,654.72
6. Step 6: Final answer
   x = 9,818.04