Finding the Fourth Proportional to 9,088.78, 12,541.39 and 5,261.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,088.78 : 12,541.39 = 5,261.08 : x
2. Step 2: Convert to fraction form
   9,088.78/12,541.39 = 5,261.08/x
3. Step 3: Cross multiply
   9,088.78x = 12,541.39 × 5,261.08
4. Step 4: Simplify right side
   9,088.78x = 65,981,256.10
5. Step 5: Solve for x
   x = 65,981,256.10/9,088.78
6. Step 6: Final answer
   x = 7,259.64