Finding the Fourth Proportional to 57,118.72, 78,824.88 and 31,968.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57,118.72 : 78,824.88 = 31,968.16 : x
2. Step 2: Convert to fraction form
   57,118.72/78,824.88 = 31,968.16/x
3. Step 3: Cross multiply
   57,118.72x = 78,824.88 × 31,968.16
4. Step 4: Simplify right side
   57,118.72x = 2,519,886,375.82
5. Step 5: Solve for x
   x = 2,519,886,375.82/57,118.72
6. Step 6: Final answer
   x = 44,116.65