Finding the Fourth Proportional to 78,566.67, 117,868.46 and 25,976.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,566.67 : 117,868.46 = 25,976.16 : x
2. Step 2: Convert to fraction form
   78,566.67/117,868.46 = 25,976.16/x
3. Step 3: Cross multiply
   78,566.67x = 117,868.46 × 25,976.16
4. Step 4: Simplify right side
   78,566.67x = 3,061,769,846.03
5. Step 5: Solve for x
   x = 3,061,769,846.03/78,566.67
6. Step 6: Final answer
   x = 38,970.34