Finding the Fourth Proportional to 31,049.60, 42,766.80 and 23,865.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,049.60 : 42,766.80 = 23,865.77 : x
2. Step 2: Convert to fraction form
   31,049.60/42,766.80 = 23,865.77/x
3. Step 3: Cross multiply
   31,049.60x = 42,766.80 × 23,865.77
4. Step 4: Simplify right side
   31,049.60x = 1,020,662,398.60
5. Step 5: Solve for x
   x = 1,020,662,398.60/31,049.60
6. Step 6: Final answer
   x = 32,872.00