Finding the Fourth Proportional to 79,011.91, 118,504.59 and 26,421.31

Step by Step Solution

1. Step 1: Write the proportion equation
   79,011.91 : 118,504.59 = 26,421.31 : x
2. Step 2: Convert to fraction form
   79,011.91/118,504.59 = 26,421.31/x
3. Step 3: Cross multiply
   79,011.91x = 118,504.59 × 26,421.31
4. Step 4: Simplify right side
   79,011.91x = 3,131,046,508.81
5. Step 5: Solve for x
   x = 3,131,046,508.81/79,011.91
6. Step 6: Final answer
   x = 39,627.53