Finding the Fourth Proportional to 144,216.46, 199,017.53 and 79,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,216.46 : 199,017.53 = 79,685.50 : x
2. Step 2: Convert to fraction form
   144,216.46/199,017.53 = 79,685.50/x
3. Step 3: Cross multiply
   144,216.46x = 199,017.53 × 79,685.50
4. Step 4: Simplify right side
   144,216.46x = 15,858,811,386.82
5. Step 5: Solve for x
   x = 15,858,811,386.82/144,216.46
6. Step 6: Final answer
   x = 109,965.34