Finding the Fourth Proportional to 104,363.02, 143,912.72 and 89,305.52

Step by Step Solution

1. Step 1: Write the proportion equation
   104,363.02 : 143,912.72 = 89,305.52 : x
2. Step 2: Convert to fraction form
   104,363.02/143,912.72 = 89,305.52/x
3. Step 3: Cross multiply
   104,363.02x = 143,912.72 × 89,305.52
4. Step 4: Simplify right side
   104,363.02x = 12,852,200,294.21
5. Step 5: Solve for x
   x = 12,852,200,294.21/104,363.02
6. Step 6: Final answer
   x = 123,148.99