Finding the Fourth Proportional to 78,392.71, 108,182.15 and 42,582.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,392.71 : 108,182.15 = 42,582.43 : x
2. Step 2: Convert to fraction form
   78,392.71/108,182.15 = 42,582.43/x
3. Step 3: Cross multiply
   78,392.71x = 108,182.15 × 42,582.43
4. Step 4: Simplify right side
   78,392.71x = 4,606,658,829.62
5. Step 5: Solve for x
   x = 4,606,658,829.62/78,392.71
6. Step 6: Final answer
   x = 58,763.87