Finding the Fourth Proportional to 141,826.74, 195,711.55 and 78,164.38

Step by Step Solution

1. Step 1: Write the proportion equation
   141,826.74 : 195,711.55 = 78,164.38 : x
2. Step 2: Convert to fraction form
   141,826.74/195,711.55 = 78,164.38/x
3. Step 3: Cross multiply
   141,826.74x = 195,711.55 × 78,164.38
4. Step 4: Simplify right side
   141,826.74x = 15,297,671,964.59
5. Step 5: Solve for x
   x = 15,297,671,964.59/141,826.74
6. Step 6: Final answer
   x = 107,861.69