Finding the Fourth Proportional to 57,057.51, 78,733.26 and 31,559.82

Step by Step Solution

1. Step 1: Write the proportion equation
   57,057.51 : 78,733.26 = 31,559.82 : x
2. Step 2: Convert to fraction form
   57,057.51/78,733.26 = 31,559.82/x
3. Step 3: Cross multiply
   57,057.51x = 78,733.26 × 31,559.82
4. Step 4: Simplify right side
   57,057.51x = 2,484,807,513.61
5. Step 5: Solve for x
   x = 2,484,807,513.61/57,057.51
6. Step 6: Final answer
   x = 43,549.18