Finding the Fourth Proportional to 143,225.27, 197,568.64 and 89,416.87

Step by Step Solution

1. Step 1: Write the proportion equation
   143,225.27 : 197,568.64 = 89,416.87 : x
2. Step 2: Convert to fraction form
   143,225.27/197,568.64 = 89,416.87/x
3. Step 3: Cross multiply
   143,225.27x = 197,568.64 × 89,416.87
4. Step 4: Simplify right side
   143,225.27x = 17,665,969,398.96
5. Step 5: Solve for x
   x = 17,665,969,398.96/143,225.27
6. Step 6: Final answer
   x = 123,343.94