Finding the Fourth Proportional to 78,393.18, 108,182.94 and 42,583.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,393.18 : 108,182.94 = 42,583.80 : x
2. Step 2: Convert to fraction form
   78,393.18/108,182.94 = 42,583.80/x
3. Step 3: Cross multiply
   78,393.18x = 108,182.94 × 42,583.80
4. Step 4: Simplify right side
   78,393.18x = 4,606,840,680.37
5. Step 5: Solve for x
   x = 4,606,840,680.37/78,393.18
6. Step 6: Final answer
   x = 58,765.83