Finding the Fourth Proportional to 47,200.80, 65,135.86 and 25,690.98

Step by Step Solution

1. Step 1: Write the proportion equation
   47,200.80 : 65,135.86 = 25,690.98 : x
2. Step 2: Convert to fraction form
   47,200.80/65,135.86 = 25,690.98/x
3. Step 3: Cross multiply
   47,200.80x = 65,135.86 × 25,690.98
4. Step 4: Simplify right side
   47,200.80x = 1,673,404,076.54
5. Step 5: Solve for x
   x = 1,673,404,076.54/47,200.80
6. Step 6: Final answer
   x = 35,452.88