Finding the Fourth Proportional to 78,383.38, 108,169.86 and 42,574.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,383.38 : 108,169.86 = 42,574.10 : x
2. Step 2: Convert to fraction form
   78,383.38/108,169.86 = 42,574.10/x
3. Step 3: Cross multiply
   78,383.38x = 108,169.86 × 42,574.10
4. Step 4: Simplify right side
   78,383.38x = 4,605,234,436.63
5. Step 5: Solve for x
   x = 4,605,234,436.63/78,383.38
6. Step 6: Final answer
   x = 58,752.69