Finding the Fourth Proportional to 10,963.10, 16,433.85 and 5,417.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,963.10 : 16,433.85 = 5,417.30 : x
2. Step 2: Convert to fraction form
   10,963.10/16,433.85 = 5,417.30/x
3. Step 3: Cross multiply
   10,963.10x = 16,433.85 × 5,417.30
4. Step 4: Simplify right side
   10,963.10x = 89,027,095.61
5. Step 5: Solve for x
   x = 89,027,095.61/10,963.10
6. Step 6: Final answer
   x = 8,120.61