Finding the Fourth Proportional to 143,605.50, 198,180.15 and 89,873.34

Step by Step Solution

1. Step 1: Write the proportion equation
   143,605.50 : 198,180.15 = 89,873.34 : x
2. Step 2: Convert to fraction form
   143,605.50/198,180.15 = 89,873.34/x
3. Step 3: Cross multiply
   143,605.50x = 198,180.15 × 89,873.34
4. Step 4: Simplify right side
   143,605.50x = 17,811,112,002.20
5. Step 5: Solve for x
   x = 17,811,112,002.20/143,605.50
6. Step 6: Final answer
   x = 124,028.06