Finding the Fourth Proportional to 78,744.51, 108,665.57 and 42,934.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,744.51 : 108,665.57 = 42,934.43 : x
2. Step 2: Convert to fraction form
   78,744.51/108,665.57 = 42,934.43/x
3. Step 3: Cross multiply
   78,744.51x = 108,665.57 × 42,934.43
4. Step 4: Simplify right side
   78,744.51x = 4,665,494,687.58
5. Step 5: Solve for x
   x = 4,665,494,687.58/78,744.51
6. Step 6: Final answer
   x = 59,248.51