Finding the Fourth Proportional to 141,849.57, 195,731.33 and 81,422.49

Step by Step Solution

1. Step 1: Write the proportion equation
   141,849.57 : 195,731.33 = 81,422.49 : x
2. Step 2: Convert to fraction form
   141,849.57/195,731.33 = 81,422.49/x
3. Step 3: Cross multiply
   141,849.57x = 195,731.33 × 81,422.49
4. Step 4: Simplify right side
   141,849.57x = 15,936,931,852.50
5. Step 5: Solve for x
   x = 15,936,931,852.50/141,849.57
6. Step 6: Final answer
   x = 112,350.94