Finding the Fourth Proportional to 31,259.42, 43,131.12 and 18,506.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,259.42 : 43,131.12 = 18,506.27 : x
2. Step 2: Convert to fraction form
   31,259.42/43,131.12 = 18,506.27/x
3. Step 3: Cross multiply
   31,259.42x = 43,131.12 × 18,506.27
4. Step 4: Simplify right side
   31,259.42x = 798,196,190.55
5. Step 5: Solve for x
   x = 798,196,190.55/31,259.42
6. Step 6: Final answer
   x = 25,534.58