Finding the Fourth Proportional to 10,552.08, 15,831.76 and 3,980.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,552.08 : 15,831.76 = 3,980.14 : x
2. Step 2: Convert to fraction form
   10,552.08/15,831.76 = 3,980.14/x
3. Step 3: Cross multiply
   10,552.08x = 15,831.76 × 3,980.14
4. Step 4: Simplify right side
   10,552.08x = 63,012,621.25
5. Step 5: Solve for x
   x = 63,012,621.25/10,552.08
6. Step 6: Final answer
   x = 5,971.58