Finding the Fourth Proportional to 57,053.67, 78,732.39 and 31,561.05

Step by Step Solution

1. Step 1: Write the proportion equation
   57,053.67 : 78,732.39 = 31,561.05 : x
2. Step 2: Convert to fraction form
   57,053.67/78,732.39 = 31,561.05/x
3. Step 3: Cross multiply
   57,053.67x = 78,732.39 × 31,561.05
4. Step 4: Simplify right side
   57,053.67x = 2,484,876,897.41
5. Step 5: Solve for x
   x = 2,484,876,897.41/57,053.67
6. Step 6: Final answer
   x = 43,553.32