Finding the Fourth Proportional to 9,103.39, 12,563.88 and 5,125.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.39 : 12,563.88 = 5,125.28 : x
2. Step 2: Convert to fraction form
   9,103.39/12,563.88 = 5,125.28/x
3. Step 3: Cross multiply
   9,103.39x = 12,563.88 × 5,125.28
4. Step 4: Simplify right side
   9,103.39x = 64,393,402.89
5. Step 5: Solve for x
   x = 64,393,402.89/9,103.39
6. Step 6: Final answer
   x = 7,073.56