Finding the Fourth Proportional to 10,516.24, 15,773.82 and 3,120.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,516.24 : 15,773.82 = 3,120.76 : x
2. Step 2: Convert to fraction form
   10,516.24/15,773.82 = 3,120.76/x
3. Step 3: Cross multiply
   10,516.24x = 15,773.82 × 3,120.76
4. Step 4: Simplify right side
   10,516.24x = 49,226,306.50
5. Step 5: Solve for x
   x = 49,226,306.50/10,516.24
6. Step 6: Final answer
   x = 4,680.98