Finding the Fourth Proportional to 78,862.92, 108,804.78 and 52,018.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,862.92 : 108,804.78 = 52,018.80 : x
2. Step 2: Convert to fraction form
   78,862.92/108,804.78 = 52,018.80/x
3. Step 3: Cross multiply
   78,862.92x = 108,804.78 × 52,018.80
4. Step 4: Simplify right side
   78,862.92x = 5,659,894,089.86
5. Step 5: Solve for x
   x = 5,659,894,089.86/78,862.92
6. Step 6: Final answer
   x = 71,768.76