Finding the Fourth Proportional to 149,449.50, 206,241.33 and 89,022.69

Step by Step Solution

1. Step 1: Write the proportion equation
   149,449.50 : 206,241.33 = 89,022.69 : x
2. Step 2: Convert to fraction form
   149,449.50/206,241.33 = 89,022.69/x
3. Step 3: Cross multiply
   149,449.50x = 206,241.33 × 89,022.69
4. Step 4: Simplify right side
   149,449.50x = 18,360,157,985.78
5. Step 5: Solve for x
   x = 18,360,157,985.78/149,449.50
6. Step 6: Final answer
   x = 122,851.92