Finding the Fourth Proportional to 144,288.18, 199,117.27 and 80,626.04

Step by Step Solution

1. Step 1: Write the proportion equation
   144,288.18 : 199,117.27 = 80,626.04 : x
2. Step 2: Convert to fraction form
   144,288.18/199,117.27 = 80,626.04/x
3. Step 3: Cross multiply
   144,288.18x = 199,117.27 × 80,626.04
4. Step 4: Simplify right side
   144,288.18x = 16,054,036,975.71
5. Step 5: Solve for x
   x = 16,054,036,975.71/144,288.18
6. Step 6: Final answer
   x = 111,263.70