Finding the Fourth Proportional to 143,055.97, 197,408.04 and 89,337.76

Step by Step Solution

1. Step 1: Write the proportion equation
   143,055.97 : 197,408.04 = 89,337.76 : x
2. Step 2: Convert to fraction form
   143,055.97/197,408.04 = 89,337.76/x
3. Step 3: Cross multiply
   143,055.97x = 197,408.04 × 89,337.76
4. Step 4: Simplify right side
   143,055.97x = 17,635,992,099.59
5. Step 5: Solve for x
   x = 17,635,992,099.59/143,055.97
6. Step 6: Final answer
   x = 123,280.36