Finding the Fourth Proportional to 9,106.20, 12,561.12 and 5,743.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,106.20 : 12,561.12 = 5,743.08 : x
2. Step 2: Convert to fraction form
   9,106.20/12,561.12 = 5,743.08/x
3. Step 3: Cross multiply
   9,106.20x = 12,561.12 × 5,743.08
4. Step 4: Simplify right side
   9,106.20x = 72,139,517.05
5. Step 5: Solve for x
   x = 72,139,517.05/9,106.20
6. Step 6: Final answer
   x = 7,922.02