Finding the Fourth Proportional to 57,266.31, 79,025.89 and 31,772.55

Step by Step Solution

1. Step 1: Write the proportion equation
   57,266.31 : 79,025.89 = 31,772.55 : x
2. Step 2: Convert to fraction form
   57,266.31/79,025.89 = 31,772.55/x
3. Step 3: Cross multiply
   57,266.31x = 79,025.89 × 31,772.55
4. Step 4: Simplify right side
   57,266.31x = 2,510,854,041.32
5. Step 5: Solve for x
   x = 2,510,854,041.32/57,266.31
6. Step 6: Final answer
   x = 43,845.22