Finding the Fourth Proportional to 9,916.32, 14,866.24 and 7,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,916.32 : 14,866.24 = 7,734.72 : x
2. Step 2: Convert to fraction form
   9,916.32/14,866.24 = 7,734.72/x
3. Step 3: Cross multiply
   9,916.32x = 14,866.24 × 7,734.72
4. Step 4: Simplify right side
   9,916.32x = 114,986,203.85
5. Step 5: Solve for x
   x = 114,986,203.85/9,916.32
6. Step 6: Final answer
   x = 11,595.65