Finding the Fourth Proportional to 78,701.59, 108,608.33 and 42,891.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,701.59 : 108,608.33 = 42,891.58 : x
2. Step 2: Convert to fraction form
   78,701.59/108,608.33 = 42,891.58/x
3. Step 3: Cross multiply
   78,701.59x = 108,608.33 × 42,891.58
4. Step 4: Simplify right side
   78,701.59x = 4,658,382,710.57
5. Step 5: Solve for x
   x = 4,658,382,710.57/78,701.59
6. Step 6: Final answer
   x = 59,190.45