Finding the Fourth Proportional to 11,961.72, 16,505.10 and 7,484.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,961.72 : 16,505.10 = 7,484.04 : x
2. Step 2: Convert to fraction form
   11,961.72/16,505.10 = 7,484.04/x
3. Step 3: Cross multiply
   11,961.72x = 16,505.10 × 7,484.04
4. Step 4: Simplify right side
   11,961.72x = 123,524,828.60
5. Step 5: Solve for x
   x = 123,524,828.60/11,961.72
6. Step 6: Final answer
   x = 10,326.68