Finding the Fourth Proportional to 31,417.42, 43,315.60 and 25,731.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,417.42 : 43,315.60 = 25,731.22 : x
2. Step 2: Convert to fraction form
   31,417.42/43,315.60 = 25,731.22/x
3. Step 3: Cross multiply
   31,417.42x = 43,315.60 × 25,731.22
4. Step 4: Simplify right side
   31,417.42x = 1,114,563,233.03
5. Step 5: Solve for x
   x = 1,114,563,233.03/31,417.42
6. Step 6: Final answer
   x = 35,475.96