Finding the Fourth Proportional to 22,803.12, 31,465.53 and 12,732.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,803.12 : 31,465.53 = 12,732.12 : x
2. Step 2: Convert to fraction form
   22,803.12/31,465.53 = 12,732.12/x
3. Step 3: Cross multiply
   22,803.12x = 31,465.53 × 12,732.12
4. Step 4: Simplify right side
   22,803.12x = 400,622,903.82
5. Step 5: Solve for x
   x = 400,622,903.82/22,803.12
6. Step 6: Final answer
   x = 17,568.78