Finding the Fourth Proportional to 78,224.16, 107,949.84 and 42,414.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,224.16 : 107,949.84 = 42,414.72 : x
2. Step 2: Convert to fraction form
   78,224.16/107,949.84 = 42,414.72/x
3. Step 3: Cross multiply
   78,224.16x = 107,949.84 × 42,414.72
4. Step 4: Simplify right side
   78,224.16x = 4,578,662,237.64
5. Step 5: Solve for x
   x = 4,578,662,237.64/78,224.16
6. Step 6: Final answer
   x = 58,532.58