Finding the Fourth Proportional to 141,856.48, 195,761.89 and 78,195.34

Step by Step Solution

1. Step 1: Write the proportion equation
   141,856.48 : 195,761.89 = 78,195.34 : x
2. Step 2: Convert to fraction form
   141,856.48/195,761.89 = 78,195.34/x
3. Step 3: Cross multiply
   141,856.48x = 195,761.89 × 78,195.34
4. Step 4: Simplify right side
   141,856.48x = 15,307,667,547.59
5. Step 5: Solve for x
   x = 15,307,667,547.59/141,856.48
6. Step 6: Final answer
   x = 107,909.54