Finding the Fourth Proportional to 78,494.47, 108,323.33 and 42,685.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,494.47 : 108,323.33 = 42,685.38 : x
2. Step 2: Convert to fraction form
   78,494.47/108,323.33 = 42,685.38/x
3. Step 3: Cross multiply
   78,494.47x = 108,323.33 × 42,685.38
4. Step 4: Simplify right side
   78,494.47x = 4,623,822,290.49
5. Step 5: Solve for x
   x = 4,623,822,290.49/78,494.47
6. Step 6: Final answer
   x = 58,906.35