Finding the Fourth Proportional to 8,707.29, 12,022.32 and 5,354.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,707.29 : 12,022.32 = 5,354.61 : x
2. Step 2: Convert to fraction form
   8,707.29/12,022.32 = 5,354.61/x
3. Step 3: Cross multiply
   8,707.29x = 12,022.32 × 5,354.61
4. Step 4: Simplify right side
   8,707.29x = 64,374,834.90
5. Step 5: Solve for x
   x = 64,374,834.90/8,707.29
6. Step 6: Final answer
   x = 7,393.21