Finding the Fourth Proportional to 141,429.99, 195,180.40 and 87,732.31

Step by Step Solution

1. Step 1: Write the proportion equation
   141,429.99 : 195,180.40 = 87,732.31 : x
2. Step 2: Convert to fraction form
   141,429.99/195,180.40 = 87,732.31/x
3. Step 3: Cross multiply
   141,429.99x = 195,180.40 × 87,732.31
4. Step 4: Simplify right side
   141,429.99x = 17,123,627,358.72
5. Step 5: Solve for x
   x = 17,123,627,358.72/141,429.99
6. Step 6: Final answer
   x = 121,074.94