Finding the Fourth Proportional to 47,198.79, 65,134.80 and 25,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,198.79 : 65,134.80 = 25,978.50 : x
2. Step 2: Convert to fraction form
   47,198.79/65,134.80 = 25,978.50/x
3. Step 3: Cross multiply
   47,198.79x = 65,134.80 × 25,978.50
4. Step 4: Simplify right side
   47,198.79x = 1,692,104,401.80
5. Step 5: Solve for x
   x = 1,692,104,401.80/47,198.79
6. Step 6: Final answer
   x = 35,850.59