Finding the Fourth Proportional to 11,651.31, 16,081.47 and 7,611.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,651.31 : 16,081.47 = 7,611.03 : x
2. Step 2: Convert to fraction form
   11,651.31/16,081.47 = 7,611.03/x
3. Step 3: Cross multiply
   11,651.31x = 16,081.47 × 7,611.03
4. Step 4: Simplify right side
   11,651.31x = 122,396,550.61
5. Step 5: Solve for x
   x = 122,396,550.61/11,651.31
6. Step 6: Final answer
   x = 10,504.96