Finding the Fourth Proportional to 9,103.24, 12,561.48 and 5,124.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.24 : 12,561.48 = 5,124.28 : x
2. Step 2: Convert to fraction form
   9,103.24/12,561.48 = 5,124.28/x
3. Step 3: Cross multiply
   9,103.24x = 12,561.48 × 5,124.28
4. Step 4: Simplify right side
   9,103.24x = 64,368,540.73
5. Step 5: Solve for x
   x = 64,368,540.73/9,103.24
6. Step 6: Final answer
   x = 7,070.95