Finding the Fourth Proportional to 9,103.16, 12,561.86 and 5,124.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.16 : 12,561.86 = 5,124.44 : x
2. Step 2: Convert to fraction form
   9,103.16/12,561.86 = 5,124.44/x
3. Step 3: Cross multiply
   9,103.16x = 12,561.86 × 5,124.44
4. Step 4: Simplify right side
   9,103.16x = 64,372,497.86
5. Step 5: Solve for x
   x = 64,372,497.86/9,103.16
6. Step 6: Final answer
   x = 7,071.45