Finding the Fourth Proportional to 140,710.32, 194,210.42 and 89,711.33

Step by Step Solution

1. Step 1: Write the proportion equation
   140,710.32 : 194,210.42 = 89,711.33 : x
2. Step 2: Convert to fraction form
   140,710.32/194,210.42 = 89,711.33/x
3. Step 3: Cross multiply
   140,710.32x = 194,210.42 × 89,711.33
4. Step 4: Simplify right side
   140,710.32x = 17,422,873,658.45
5. Step 5: Solve for x
   x = 17,422,873,658.45/140,710.32
6. Step 6: Final answer
   x = 123,820.87