Finding the Fourth Proportional to 57,112.72, 78,816.60 and 31,962.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57,112.72 : 78,816.60 = 31,962.16 : x
2. Step 2: Convert to fraction form
   57,112.72/78,816.60 = 31,962.16/x
3. Step 3: Cross multiply
   57,112.72x = 78,816.60 × 31,962.16
4. Step 4: Simplify right side
   57,112.72x = 2,519,148,779.86
5. Step 5: Solve for x
   x = 2,519,148,779.86/57,112.72
6. Step 6: Final answer
   x = 44,108.37