Finding the Fourth Proportional to 123,168.83, 169,740.72 and 89,119.67

Step by Step Solution

1. Step 1: Write the proportion equation
   123,168.83 : 169,740.72 = 89,119.67 : x
2. Step 2: Convert to fraction form
   123,168.83/169,740.72 = 89,119.67/x
3. Step 3: Cross multiply
   123,168.83x = 169,740.72 × 89,119.67
4. Step 4: Simplify right side
   123,168.83x = 15,127,236,103.26
5. Step 5: Solve for x
   x = 15,127,236,103.26/123,168.83
6. Step 6: Final answer
   x = 122,817.09