Finding the Fourth Proportional to 78,323.39, 108,086.36 and 42,513.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323.39 : 108,086.36 = 42,513.39 : x
2. Step 2: Convert to fraction form
   78,323.39/108,086.36 = 42,513.39/x
3. Step 3: Cross multiply
   78,323.39x = 108,086.36 × 42,513.39
4. Step 4: Simplify right side
   78,323.39x = 4,595,117,363.79
5. Step 5: Solve for x
   x = 4,595,117,363.79/78,323.39
6. Step 6: Final answer
   x = 58,668.52