Finding the Fourth Proportional to 13,422.26, 18,522.83 and 7,454.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,422.26 : 18,522.83 = 7,454.03 : x
2. Step 2: Convert to fraction form
   13,422.26/18,522.83 = 7,454.03/x
3. Step 3: Cross multiply
   13,422.26x = 18,522.83 × 7,454.03
4. Step 4: Simplify right side
   13,422.26x = 138,069,614.60
5. Step 5: Solve for x
   x = 138,069,614.60/13,422.26
6. Step 6: Final answer
   x = 10,286.62