Finding the Fourth Proportional to 78,738.98, 118,082.79 and 26,134.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,738.98 : 118,082.79 = 26,134.34 : x
2. Step 2: Convert to fraction form
   78,738.98/118,082.79 = 26,134.34/x
3. Step 3: Cross multiply
   78,738.98x = 118,082.79 × 26,134.34
4. Step 4: Simplify right side
   78,738.98x = 3,086,015,191.59
5. Step 5: Solve for x
   x = 3,086,015,191.59/78,738.98
6. Step 6: Final answer
   x = 39,192.98