Finding the Fourth Proportional to 78,385.37, 108,170.01 and 42,574.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,385.37 : 108,170.01 = 42,574.59 : x
2. Step 2: Convert to fraction form
   78,385.37/108,170.01 = 42,574.59/x
3. Step 3: Cross multiply
   78,385.37x = 108,170.01 × 42,574.59
4. Step 4: Simplify right side
   78,385.37x = 4,605,293,826.05
5. Step 5: Solve for x
   x = 4,605,293,826.05/78,385.37
6. Step 6: Final answer
   x = 58,751.96