Finding the Fourth Proportional to 143,061.71, 197,415.97 and 89,343.52

Step by Step Solution

1. Step 1: Write the proportion equation
   143,061.71 : 197,415.97 = 89,343.52 : x
2. Step 2: Convert to fraction form
   143,061.71/197,415.97 = 89,343.52/x
3. Step 3: Cross multiply
   143,061.71x = 197,415.97 × 89,343.52
4. Step 4: Simplify right side
   143,061.71x = 17,637,836,947.12
5. Step 5: Solve for x
   x = 17,637,836,947.12/143,061.71
6. Step 6: Final answer
   x = 123,288.32