Finding the Fourth Proportional to 78,788.69, 118,184.06 and 26,198.17

Step by Step Solution

1. Step 1: Write the proportion equation
   78,788.69 : 118,184.06 = 26,198.17 : x
2. Step 2: Convert to fraction form
   78,788.69/118,184.06 = 26,198.17/x
3. Step 3: Cross multiply
   78,788.69x = 118,184.06 × 26,198.17
4. Step 4: Simplify right side
   78,788.69x = 3,096,206,095.17
5. Step 5: Solve for x
   x = 3,096,206,095.17/78,788.69
6. Step 6: Final answer
   x = 39,297.60