Finding the Fourth Proportional to 78,033.62, 107,686.05 and 42,224.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,033.62 : 107,686.05 = 42,224.27 : x
2. Step 2: Convert to fraction form
   78,033.62/107,686.05 = 42,224.27/x
3. Step 3: Cross multiply
   78,033.62x = 107,686.05 × 42,224.27
4. Step 4: Simplify right side
   78,033.62x = 4,546,964,850.43
5. Step 5: Solve for x
   x = 4,546,964,850.43/78,033.62
6. Step 6: Final answer
   x = 58,269.31