Finding the Fourth Proportional to 57,062.72, 78,748.90 and 31,568.66

Step by Step Solution

1. Step 1: Write the proportion equation
   57,062.72 : 78,748.90 = 31,568.66 : x
2. Step 2: Convert to fraction form
   57,062.72/78,748.90 = 31,568.66/x
3. Step 3: Cross multiply
   57,062.72x = 78,748.90 × 31,568.66
4. Step 4: Simplify right side
   57,062.72x = 2,485,997,367.42
5. Step 5: Solve for x
   x = 2,485,997,367.42/57,062.72
6. Step 6: Final answer
   x = 43,566.05