Finding the Fourth Proportional to 78,323.58, 108,086.65 and 42,513.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323.58 : 108,086.65 = 42,513.62 : x
2. Step 2: Convert to fraction form
   78,323.58/108,086.65 = 42,513.62/x
3. Step 3: Cross multiply
   78,323.58x = 108,086.65 × 42,513.62
4. Step 4: Simplify right side
   78,323.58x = 4,595,154,118.46
5. Step 5: Solve for x
   x = 4,595,154,118.46/78,323.58
6. Step 6: Final answer
   x = 58,668.85