Finding the Fourth Proportional to 81,726.91, 112,782.37 and 45,427.41

Step by Step Solution

1. Step 1: Write the proportion equation
   81,726.91 : 112,782.37 = 45,427.41 : x
2. Step 2: Convert to fraction form
   81,726.91/112,782.37 = 45,427.41/x
3. Step 3: Cross multiply
   81,726.91x = 112,782.37 × 45,427.41
4. Step 4: Simplify right side
   81,726.91x = 5,123,410,171.71
5. Step 5: Solve for x
   x = 5,123,410,171.71/81,726.91
6. Step 6: Final answer
   x = 62,689.39