Finding the Fourth Proportional to 143,133.94, 197,568.42 and 89,384.74

Step by Step Solution

1. Step 1: Write the proportion equation
   143,133.94 : 197,568.42 = 89,384.74 : x
2. Step 2: Convert to fraction form
   143,133.94/197,568.42 = 89,384.74/x
3. Step 3: Cross multiply
   143,133.94x = 197,568.42 × 89,384.74
4. Step 4: Simplify right side
   143,133.94x = 17,659,601,853.91
5. Step 5: Solve for x
   x = 17,659,601,853.91/143,133.94
6. Step 6: Final answer
   x = 123,378.16