Finding the Fourth Proportional to 8,893.71, 12,274.20 and 5,359.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,893.71 : 12,274.20 = 5,359.86 : x
2. Step 2: Convert to fraction form
   8,893.71/12,274.20 = 5,359.86/x
3. Step 3: Cross multiply
   8,893.71x = 12,274.20 × 5,359.86
4. Step 4: Simplify right side
   8,893.71x = 65,787,993.61
5. Step 5: Solve for x
   x = 65,787,993.61/8,893.71
6. Step 6: Final answer
   x = 7,397.14