Finding the Fourth Proportional to 9,235.27, 12,741.67 and 5,458.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,235.27 : 12,741.67 = 5,458.55 : x
2. Step 2: Convert to fraction form
   9,235.27/12,741.67 = 5,458.55/x
3. Step 3: Cross multiply
   9,235.27x = 12,741.67 × 5,458.55
4. Step 4: Simplify right side
   9,235.27x = 69,551,042.78
5. Step 5: Solve for x
   x = 69,551,042.78/9,235.27
6. Step 6: Final answer
   x = 7,531.02