Finding the Fourth Proportional to 261,091.50, 360,308.43 and 141,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   261,091.50 : 360,308.43 = 141,859.50 : x
2. Step 2: Convert to fraction form
   261,091.50/360,308.43 = 141,859.50/x
3. Step 3: Cross multiply
   261,091.50x = 360,308.43 × 141,859.50
4. Step 4: Simplify right side
   261,091.50x = 51,113,173,725.59
5. Step 5: Solve for x
   x = 51,113,173,725.59/261,091.50
6. Step 6: Final answer
   x = 195,767.28