Finding the Fourth Proportional to 47,139.64, 65,052.12 and 25,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,139.64 : 65,052.12 = 25,918.72 : x
2. Step 2: Convert to fraction form
   47,139.64/65,052.12 = 25,918.72/x
3. Step 3: Cross multiply
   47,139.64x = 65,052.12 × 25,918.72
4. Step 4: Simplify right side
   47,139.64x = 1,686,067,683.69
5. Step 5: Solve for x
   x = 1,686,067,683.69/47,139.64
6. Step 6: Final answer
   x = 35,767.51