Finding the Fourth Proportional to 9,104.88, 12,564.72 and 5,125.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,104.88 : 12,564.72 = 5,125.80 : x
2. Step 2: Convert to fraction form
   9,104.88/12,564.72 = 5,125.80/x
3. Step 3: Cross multiply
   9,104.88x = 12,564.72 × 5,125.80
4. Step 4: Simplify right side
   9,104.88x = 64,404,241.78
5. Step 5: Solve for x
   x = 64,404,241.78/9,104.88
6. Step 6: Final answer
   x = 7,073.60