Finding the Fourth Proportional to 9,103.48, 12,561.91 and 5,124.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.48 : 12,561.91 = 5,124.51 : x
2. Step 2: Convert to fraction form
   9,103.48/12,561.91 = 5,124.51/x
3. Step 3: Cross multiply
   9,103.48x = 12,561.91 × 5,124.51
4. Step 4: Simplify right side
   9,103.48x = 64,373,633.41
5. Step 5: Solve for x
   x = 64,373,633.41/9,103.48
6. Step 6: Final answer
   x = 7,071.32