Finding the Fourth Proportional to 143,168.02, 197,670.72 and 89,477.17

Step by Step Solution

1. Step 1: Write the proportion equation
   143,168.02 : 197,670.72 = 89,477.17 : x
2. Step 2: Convert to fraction form
   143,168.02/197,670.72 = 89,477.17/x
3. Step 3: Cross multiply
   143,168.02x = 197,670.72 × 89,477.17
4. Step 4: Simplify right side
   143,168.02x = 17,687,016,617.46
5. Step 5: Solve for x
   x = 17,687,016,617.46/143,168.02
6. Step 6: Final answer
   x = 123,540.28