Finding the Fourth Proportional to 72,820.27, 100,522.94 and 48,960.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,820.27 : 100,522.94 = 48,960.78 : x
2. Step 2: Convert to fraction form
   72,820.27/100,522.94 = 48,960.78/x
3. Step 3: Cross multiply
   72,820.27x = 100,522.94 × 48,960.78
4. Step 4: Simplify right side
   72,820.27x = 4,921,681,550.29
5. Step 5: Solve for x
   x = 4,921,681,550.29/72,820.27
6. Step 6: Final answer
   x = 67,586.70