Finding the Fourth Proportional to 31,562.82, 43,543.02 and 18,131.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,562.82 : 43,543.02 = 18,131.01 : x
2. Step 2: Convert to fraction form
   31,562.82/43,543.02 = 18,131.01/x
3. Step 3: Cross multiply
   31,562.82x = 43,543.02 × 18,131.01
4. Step 4: Simplify right side
   31,562.82x = 789,478,931.05
5. Step 5: Solve for x
   x = 789,478,931.05/31,562.82
6. Step 6: Final answer
   x = 25,012.94