Finding the Fourth Proportional to 78,868.56, 118,204.38 and 39,436.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,868.56 : 118,204.38 = 39,436.94 : x
2. Step 2: Convert to fraction form
   78,868.56/118,204.38 = 39,436.94/x
3. Step 3: Cross multiply
   78,868.56x = 118,204.38 × 39,436.94
4. Step 4: Simplify right side
   78,868.56x = 4,661,619,041.80
5. Step 5: Solve for x
   x = 4,661,619,041.80/78,868.56
6. Step 6: Final answer
   x = 59,106.18