Finding the Fourth Proportional to 11,541.88, 15,917.34 and 7,561.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,541.88 : 15,917.34 = 7,561.54 : x
2. Step 2: Convert to fraction form
   11,541.88/15,917.34 = 7,561.54/x
3. Step 3: Cross multiply
   11,541.88x = 15,917.34 × 7,561.54
4. Step 4: Simplify right side
   11,541.88x = 120,359,603.10
5. Step 5: Solve for x
   x = 120,359,603.10/11,541.88
6. Step 6: Final answer
   x = 10,428.08