Finding the Fourth Proportional to 78,224.20, 107,949.06 and 42,414.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,224.20 : 107,949.06 = 42,414.04 : x
2. Step 2: Convert to fraction form
   78,224.20/107,949.06 = 42,414.04/x
3. Step 3: Cross multiply
   78,224.20x = 107,949.06 × 42,414.04
4. Step 4: Simplify right side
   78,224.20x = 4,578,555,748.80
5. Step 5: Solve for x
   x = 4,578,555,748.80/78,224.20
6. Step 6: Final answer
   x = 58,531.19