Finding the Fourth Proportional to 10,552.56, 15,828.82 and 3,980.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,552.56 : 15,828.82 = 3,980.22 : x
2. Step 2: Convert to fraction form
   10,552.56/15,828.82 = 3,980.22/x
3. Step 3: Cross multiply
   10,552.56x = 15,828.82 × 3,980.22
4. Step 4: Simplify right side
   10,552.56x = 63,002,185.94
5. Step 5: Solve for x
   x = 63,002,185.94/10,552.56
6. Step 6: Final answer
   x = 5,970.32