Finding the Fourth Proportional to 8,831.57, 12,191.04 and 5,294.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,831.57 : 12,191.04 = 5,294.10 : x
2. Step 2: Convert to fraction form
   8,831.57/12,191.04 = 5,294.10/x
3. Step 3: Cross multiply
   8,831.57x = 12,191.04 × 5,294.10
4. Step 4: Simplify right side
   8,831.57x = 64,540,539.15
5. Step 5: Solve for x
   x = 64,540,539.15/8,831.57
6. Step 6: Final answer
   x = 7,307.94