Finding the Fourth Proportional to 47,139.65, 65,052.71 and 25,920.29

Step by Step Solution

1. Step 1: Write the proportion equation
   47,139.65 : 65,052.71 = 25,920.29 : x
2. Step 2: Convert to fraction form
   47,139.65/65,052.71 = 25,920.29/x
3. Step 3: Cross multiply
   47,139.65x = 65,052.71 × 25,920.29
4. Step 4: Simplify right side
   47,139.65x = 1,686,184,978.88
5. Step 5: Solve for x
   x = 1,686,184,978.88/47,139.65
6. Step 6: Final answer
   x = 35,769.99