Finding the Fourth Proportional to 78,454.94, 108,269.92 and 42,647.36

Step by Step Solution

1. Step 1: Write the proportion equation
   78,454.94 : 108,269.92 = 42,647.36 : x
2. Step 2: Convert to fraction form
   78,454.94/108,269.92 = 42,647.36/x
3. Step 3: Cross multiply
   78,454.94x = 108,269.92 × 42,647.36
4. Step 4: Simplify right side
   78,454.94x = 4,617,426,255.41
5. Step 5: Solve for x
   x = 4,617,426,255.41/78,454.94
6. Step 6: Final answer
   x = 58,854.50