Finding the Fourth Proportional to 143,259.50, 197,699.27 and 89,575.62

Step by Step Solution

1. Step 1: Write the proportion equation
   143,259.50 : 197,699.27 = 89,575.62 : x
2. Step 2: Convert to fraction form
   143,259.50/197,699.27 = 89,575.62/x
3. Step 3: Cross multiply
   143,259.50x = 197,699.27 × 89,575.62
4. Step 4: Simplify right side
   143,259.50x = 17,709,034,235.92
5. Step 5: Solve for x
   x = 17,709,034,235.92/143,259.50
6. Step 6: Final answer
   x = 123,615.08