Finding the Fourth Proportional to 141,933.57, 195,859.37 and 81,461.65

Step by Step Solution

1. Step 1: Write the proportion equation
   141,933.57 : 195,859.37 = 81,461.65 : x
2. Step 2: Convert to fraction form
   141,933.57/195,859.37 = 81,461.65/x
3. Step 3: Cross multiply
   141,933.57x = 195,859.37 × 81,461.65
4. Step 4: Simplify right side
   141,933.57x = 15,955,026,061.56
5. Step 5: Solve for x
   x = 15,955,026,061.56/141,933.57
6. Step 6: Final answer
   x = 112,411.93