Finding the Fourth Proportional to 9,087.72, 12,541.50 and 5,550.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,087.72 : 12,541.50 = 5,550.36 : x
2. Step 2: Convert to fraction form
   9,087.72/12,541.50 = 5,550.36/x
3. Step 3: Cross multiply
   9,087.72x = 12,541.50 × 5,550.36
4. Step 4: Simplify right side
   9,087.72x = 69,609,839.94
5. Step 5: Solve for x
   x = 69,609,839.94/9,087.72
6. Step 6: Final answer
   x = 7,659.77