Finding the Fourth Proportional to 56,123.88, 84,111.99 and 26,550.15

Step by Step Solution

1. Step 1: Write the proportion equation
   56,123.88 : 84,111.99 = 26,550.15 : x
2. Step 2: Convert to fraction form
   56,123.88/84,111.99 = 26,550.15/x
3. Step 3: Cross multiply
   56,123.88x = 84,111.99 × 26,550.15
4. Step 4: Simplify right side
   56,123.88x = 2,233,185,951.30
5. Step 5: Solve for x
   x = 2,233,185,951.30/56,123.88
6. Step 6: Final answer
   x = 39,790.30