Finding the Fourth Proportional to 141,811.59, 195,690.72 and 78,149.37

Step by Step Solution

1. Step 1: Write the proportion equation
   141,811.59 : 195,690.72 = 78,149.37 : x
2. Step 2: Convert to fraction form
   141,811.59/195,690.72 = 78,149.37/x
3. Step 3: Cross multiply
   141,811.59x = 195,690.72 × 78,149.37
4. Step 4: Simplify right side
   141,811.59x = 15,293,106,482.85
5. Step 5: Solve for x
   x = 15,293,106,482.85/141,811.59
6. Step 6: Final answer
   x = 107,841.02