Finding the Fourth Proportional to 10,522.72, 15,775.98 and 3,948.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,522.72 : 15,775.98 = 3,948.76 : x
2. Step 2: Convert to fraction form
   10,522.72/15,775.98 = 3,948.76/x
3. Step 3: Cross multiply
   10,522.72x = 15,775.98 × 3,948.76
4. Step 4: Simplify right side
   10,522.72x = 62,295,558.78
5. Step 5: Solve for x
   x = 62,295,558.78/10,522.72
6. Step 6: Final answer
   x = 5,920.10