Finding the Fourth Proportional to 47,389.31, 65,399.90 and 25,881.05

Step by Step Solution

1. Step 1: Write the proportion equation
   47,389.31 : 65,399.90 = 25,881.05 : x
2. Step 2: Convert to fraction form
   47,389.31/65,399.90 = 25,881.05/x
3. Step 3: Cross multiply
   47,389.31x = 65,399.90 × 25,881.05
4. Step 4: Simplify right side
   47,389.31x = 1,692,618,081.90
5. Step 5: Solve for x
   x = 1,692,618,081.90/47,389.31
6. Step 6: Final answer
   x = 35,717.30