Finding the Fourth Proportional to 31,684.68, 43,730.28 and 18,253.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,684.68 : 43,730.28 = 18,253.53 : x
2. Step 2: Convert to fraction form
   31,684.68/43,730.28 = 18,253.53/x
3. Step 3: Cross multiply
   31,684.68x = 43,730.28 × 18,253.53
4. Step 4: Simplify right side
   31,684.68x = 798,231,977.89
5. Step 5: Solve for x
   x = 798,231,977.89/31,684.68
6. Step 6: Final answer
   x = 25,192.99