Finding the Fourth Proportional to 79,017.20, 118,540.56 and 26,426.96

Step by Step Solution

1. Step 1: Write the proportion equation
   79,017.20 : 118,540.56 = 26,426.96 : x
2. Step 2: Convert to fraction form
   79,017.20/118,540.56 = 26,426.96/x
3. Step 3: Cross multiply
   79,017.20x = 118,540.56 × 26,426.96
4. Step 4: Simplify right side
   79,017.20x = 3,132,666,637.50
5. Step 5: Solve for x
   x = 3,132,666,637.50/79,017.20
6. Step 6: Final answer
   x = 39,645.38