Finding the Fourth Proportional to 10,053.72, 15,082.20 and 3,479.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,053.72 : 15,082.20 = 3,479.76 : x
2. Step 2: Convert to fraction form
   10,053.72/15,082.20 = 3,479.76/x
3. Step 3: Cross multiply
   10,053.72x = 15,082.20 × 3,479.76
4. Step 4: Simplify right side
   10,053.72x = 52,482,436.27
5. Step 5: Solve for x
   x = 52,482,436.27/10,053.72
6. Step 6: Final answer
   x = 5,220.20