Finding the Fourth Proportional to 9,101.86, 12,561.02 and 5,123.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,101.86 : 12,561.02 = 5,123.41 : x
2. Step 2: Convert to fraction form
   9,101.86/12,561.02 = 5,123.41/x
3. Step 3: Cross multiply
   9,101.86x = 12,561.02 × 5,123.41
4. Step 4: Simplify right side
   9,101.86x = 64,355,255.48
5. Step 5: Solve for x
   x = 64,355,255.48/9,101.86
6. Step 6: Final answer
   x = 7,070.56