Finding the Fourth Proportional to 78,701.82, 108,605.30 and 42,891.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,701.82 : 108,605.30 = 42,891.04 : x
2. Step 2: Convert to fraction form
   78,701.82/108,605.30 = 42,891.04/x
3. Step 3: Cross multiply
   78,701.82x = 108,605.30 × 42,891.04
4. Step 4: Simplify right side
   78,701.82x = 4,658,194,266.51
5. Step 5: Solve for x
   x = 4,658,194,266.51/78,701.82
6. Step 6: Final answer
   x = 59,187.88