Finding the Fourth Proportional to 141,938.06, 195,872.18 and 78,281.78

Step by Step Solution

1. Step 1: Write the proportion equation
   141,938.06 : 195,872.18 = 78,281.78 : x
2. Step 2: Convert to fraction form
   141,938.06/195,872.18 = 78,281.78/x
3. Step 3: Cross multiply
   141,938.06x = 195,872.18 × 78,281.78
4. Step 4: Simplify right side
   141,938.06x = 15,333,222,902.88
5. Step 5: Solve for x
   x = 15,333,222,902.88/141,938.06
6. Step 6: Final answer
   x = 108,027.56