Finding the Fourth Proportional to 123,069.91, 169,868.07 and 80,156.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069.91 : 169,868.07 = 80,156.34 : x
2. Step 2: Convert to fraction form
   123,069.91/169,868.07 = 80,156.34/x
3. Step 3: Cross multiply
   123,069.91x = 169,868.07 × 80,156.34
4. Step 4: Simplify right side
   123,069.91x = 13,616,002,282.87
5. Step 5: Solve for x
   x = 13,616,002,282.87/123,069.91
6. Step 6: Final answer
   x = 110,636.32