Finding the Fourth Proportional to 22,825.56, 31,499.37 and 12,753.21

Step by Step Solution

1. Step 1: Write the proportion equation
   22,825.56 : 31,499.37 = 12,753.21 : x
2. Step 2: Convert to fraction form
   22,825.56/31,499.37 = 12,753.21/x
3. Step 3: Cross multiply
   22,825.56x = 31,499.37 × 12,753.21
4. Step 4: Simplify right side
   22,825.56x = 401,718,080.48
5. Step 5: Solve for x
   x = 401,718,080.48/22,825.56
6. Step 6: Final answer
   x = 17,599.48