Finding the Fourth Proportional to 72,071.88, 99,480.20 and 41,870.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,071.88 : 99,480.20 = 41,870.76 : x
2. Step 2: Convert to fraction form
   72,071.88/99,480.20 = 41,870.76/x
3. Step 3: Cross multiply
   72,071.88x = 99,480.20 × 41,870.76
4. Step 4: Simplify right side
   72,071.88x = 4,165,311,578.95
5. Step 5: Solve for x
   x = 4,165,311,578.95/72,071.88
6. Step 6: Final answer
   x = 57,793.85