Finding the Fourth Proportional to 9,088.88, 12,542.85 and 5,554.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,088.88 : 12,542.85 = 5,554.04 : x
2. Step 2: Convert to fraction form
   9,088.88/12,542.85 = 5,554.04/x
3. Step 3: Cross multiply
   9,088.88x = 12,542.85 × 5,554.04
4. Step 4: Simplify right side
   9,088.88x = 69,663,427.90
5. Step 5: Solve for x
   x = 69,663,427.90/9,088.88
6. Step 6: Final answer
   x = 7,664.69