Finding the Fourth Proportional to 127,456.20, 175,926.53 and 79,072.88

Step by Step Solution

1. Step 1: Write the proportion equation
   127,456.20 : 175,926.53 = 79,072.88 : x
2. Step 2: Convert to fraction form
   127,456.20/175,926.53 = 79,072.88/x
3. Step 3: Cross multiply
   127,456.20x = 175,926.53 × 79,072.88
4. Step 4: Simplify right side
   127,456.20x = 13,911,016,120.51
5. Step 5: Solve for x
   x = 13,911,016,120.51/127,456.20
6. Step 6: Final answer
   x = 109,143.50