Finding the Fourth Proportional to 78,899.72, 118,355.76 and 26,309.24

Step by Step Solution

1. Step 1: Write the proportion equation
   78,899.72 : 118,355.76 = 26,309.24 : x
2. Step 2: Convert to fraction form
   78,899.72/118,355.76 = 26,309.24/x
3. Step 3: Cross multiply
   78,899.72x = 118,355.76 × 26,309.24
4. Step 4: Simplify right side
   78,899.72x = 3,113,850,095.22
5. Step 5: Solve for x
   x = 3,113,850,095.22/78,899.72
6. Step 6: Final answer
   x = 39,465.92