Finding the Fourth Proportional to 79,186.71, 118,767.69 and 25,878.27

Step by Step Solution

1. Step 1: Write the proportion equation
   79,186.71 : 118,767.69 = 25,878.27 : x
2. Step 2: Convert to fraction form
   79,186.71/118,767.69 = 25,878.27/x
3. Step 3: Cross multiply
   79,186.71x = 118,767.69 × 25,878.27
4. Step 4: Simplify right side
   79,186.71x = 3,073,501,625.87
5. Step 5: Solve for x
   x = 3,073,501,625.87/79,186.71
6. Step 6: Final answer
   x = 38,813.35