Finding the Fourth Proportional to 143,155.86, 197,515.17 and 89,495.52

Step by Step Solution

1. Step 1: Write the proportion equation
   143,155.86 : 197,515.17 = 89,495.52 : x
2. Step 2: Convert to fraction form
   143,155.86/197,515.17 = 89,495.52/x
3. Step 3: Cross multiply
   143,155.86x = 197,515.17 × 89,495.52
4. Step 4: Simplify right side
   143,155.86x = 17,676,722,847.04
5. Step 5: Solve for x
   x = 17,676,722,847.04/143,155.86
6. Step 6: Final answer
   x = 123,478.86