Finding the Fourth Proportional to 22,822.56, 31,499.28 and 13,263.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,822.56 : 31,499.28 = 13,263.75 : x
2. Step 2: Convert to fraction form
   22,822.56/31,499.28 = 13,263.75/x
3. Step 3: Cross multiply
   22,822.56x = 31,499.28 × 13,263.75
4. Step 4: Simplify right side
   22,822.56x = 417,798,575.10
5. Step 5: Solve for x
   x = 417,798,575.10/22,822.56
6. Step 6: Final answer
   x = 18,306.39