Finding the Fourth Proportional to 8,895.57, 12,275.78 and 4,916.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,895.57 : 12,275.78 = 4,916.63 : x
2. Step 2: Convert to fraction form
   8,895.57/12,275.78 = 4,916.63/x
3. Step 3: Cross multiply
   8,895.57x = 12,275.78 × 4,916.63
4. Step 4: Simplify right side
   8,895.57x = 60,355,382.26
5. Step 5: Solve for x
   x = 60,355,382.26/8,895.57
6. Step 6: Final answer
   x = 6,784.88