Finding the Fourth Proportional to 47,139.57, 65,052.50 and 25,919.19

Step by Step Solution

1. Step 1: Write the proportion equation
   47,139.57 : 65,052.50 = 25,919.19 : x
2. Step 2: Convert to fraction form
   47,139.57/65,052.50 = 25,919.19/x
3. Step 3: Cross multiply
   47,139.57x = 65,052.50 × 25,919.19
4. Step 4: Simplify right side
   47,139.57x = 1,686,107,977.88
5. Step 5: Solve for x
   x = 1,686,107,977.88/47,139.57
6. Step 6: Final answer
   x = 35,768.42