Finding the Fourth Proportional to 78,804.92, 108,746.98 and 42,992.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,804.92 : 108,746.98 = 42,992.80 : x
2. Step 2: Convert to fraction form
   78,804.92/108,746.98 = 42,992.80/x
3. Step 3: Cross multiply
   78,804.92x = 108,746.98 × 42,992.80
4. Step 4: Simplify right side
   78,804.92x = 4,675,337,161.74
5. Step 5: Solve for x
   x = 4,675,337,161.74/78,804.92
6. Step 6: Final answer
   x = 59,327.99