Finding the Fourth Proportional to 10,552.47, 15,832.31 and 3,980.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,552.47 : 15,832.31 = 3,980.53 : x
2. Step 2: Convert to fraction form
   10,552.47/15,832.31 = 3,980.53/x
3. Step 3: Cross multiply
   10,552.47x = 15,832.31 × 3,980.53
4. Step 4: Simplify right side
   10,552.47x = 63,020,984.92
5. Step 5: Solve for x
   x = 63,020,984.92/10,552.47
6. Step 6: Final answer
   x = 5,972.15