Finding the Fourth Proportional to 78,602.94, 108,471.98 and 42,792.95

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.94 : 108,471.98 = 42,792.95 : x
2. Step 2: Convert to fraction form
   78,602.94/108,471.98 = 42,792.95/x
3. Step 3: Cross multiply
   78,602.94x = 108,471.98 × 42,792.95
4. Step 4: Simplify right side
   78,602.94x = 4,641,836,394.70
5. Step 5: Solve for x
   x = 4,641,836,394.70/78,602.94
6. Step 6: Final answer
   x = 59,054.23