Finding the Fourth Proportional to 10,552.25, 15,830.71 and 3,978.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,552.25 : 15,830.71 = 3,978.49 : x
2. Step 2: Convert to fraction form
   10,552.25/15,830.71 = 3,978.49/x
3. Step 3: Cross multiply
   10,552.25x = 15,830.71 × 3,978.49
4. Step 4: Simplify right side
   10,552.25x = 62,982,222.38
5. Step 5: Solve for x
   x = 62,982,222.38/10,552.25
6. Step 6: Final answer
   x = 5,968.61