Finding the Fourth Proportional to 57,047, 78,726.54 and 31,896.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,047 : 78,726.54 = 31,896.56 : x
2. Step 2: Convert to fraction form
   57,047/78,726.54 = 31,896.56/x
3. Step 3: Cross multiply
   57,047x = 78,726.54 × 31,896.56
4. Step 4: Simplify right side
   57,047x = 2,511,105,806.70
5. Step 5: Solve for x
   x = 2,511,105,806.70/57,047
6. Step 6: Final answer
   x = 44,018.19