Finding the Fourth Proportional to 9,104.55, 12,566.90 and 5,917.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,104.55 : 12,566.90 = 5,917.91 : x
2. Step 2: Convert to fraction form
   9,104.55/12,566.90 = 5,917.91/x
3. Step 3: Cross multiply
   9,104.55x = 12,566.90 × 5,917.91
4. Step 4: Simplify right side
   9,104.55x = 74,369,772.54
5. Step 5: Solve for x
   x = 74,369,772.54/9,104.55
6. Step 6: Final answer
   x = 8,168.42