Finding the Fourth Proportional to 9,103.56, 12,561.12 and 5,124.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.56 : 12,561.12 = 5,124.84 : x
2. Step 2: Convert to fraction form
   9,103.56/12,561.12 = 5,124.84/x
3. Step 3: Cross multiply
   9,103.56x = 12,561.12 × 5,124.84
4. Step 4: Simplify right side
   9,103.56x = 64,373,730.22
5. Step 5: Solve for x
   x = 64,373,730.22/9,103.56
6. Step 6: Final answer
   x = 7,071.27