Finding the Fourth Proportional to 22,496.38, 31,045 and 13,065.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,496.38 : 31,045 = 13,065.55 : x
2. Step 2: Convert to fraction form
   22,496.38/31,045 = 13,065.55/x
3. Step 3: Cross multiply
   22,496.38x = 31,045 × 13,065.55
4. Step 4: Simplify right side
   22,496.38x = 405,619,999.75
5. Step 5: Solve for x
   x = 405,619,999.75/22,496.38
6. Step 6: Final answer
   x = 18,030.46