Finding the Fourth Proportional to 144,381.69, 199,252.71 and 80,719.34

Step by Step Solution

1. Step 1: Write the proportion equation
   144,381.69 : 199,252.71 = 80,719.34 : x
2. Step 2: Convert to fraction form
   144,381.69/199,252.71 = 80,719.34/x
3. Step 3: Cross multiply
   144,381.69x = 199,252.71 × 80,719.34
4. Step 4: Simplify right side
   144,381.69x = 16,083,546,248.15
5. Step 5: Solve for x
   x = 16,083,546,248.15/144,381.69
6. Step 6: Final answer
   x = 111,396.02