Finding the Fourth Proportional to 144,265.88, 199,080.72 and 79,731.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,265.88 : 199,080.72 = 79,731.78 : x
2. Step 2: Convert to fraction form
   144,265.88/199,080.72 = 79,731.78/x
3. Step 3: Cross multiply
   144,265.88x = 199,080.72 × 79,731.78
4. Step 4: Simplify right side
   144,265.88x = 15,873,060,094.42
5. Step 5: Solve for x
   x = 15,873,060,094.42/144,265.88
6. Step 6: Final answer
   x = 110,026.43