Finding the Fourth Proportional to 78,600.96, 108,469.98 and 42,791.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,600.96 : 108,469.98 = 42,791.22 : x
2. Step 2: Convert to fraction form
   78,600.96/108,469.98 = 42,791.22/x
3. Step 3: Cross multiply
   78,600.96x = 108,469.98 × 42,791.22
4. Step 4: Simplify right side
   78,600.96x = 4,641,562,777.58
5. Step 5: Solve for x
   x = 4,641,562,777.58/78,600.96
6. Step 6: Final answer
   x = 59,052.24