Finding the Fourth Proportional to 141,892.83, 195,821.15 and 78,236.55

Step by Step Solution

1. Step 1: Write the proportion equation
   141,892.83 : 195,821.15 = 78,236.55 : x
2. Step 2: Convert to fraction form
   141,892.83/195,821.15 = 78,236.55/x
3. Step 3: Cross multiply
   141,892.83x = 195,821.15 × 78,236.55
4. Step 4: Simplify right side
   141,892.83x = 15,320,370,801.85
5. Step 5: Solve for x
   x = 15,320,370,801.85/141,892.83
6. Step 6: Final answer
   x = 107,971.42