Finding the Fourth Proportional to 22,156.52, 30,575.25 and 13,199.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156.52 : 30,575.25 = 13,199.39 : x
2. Step 2: Convert to fraction form
   22,156.52/30,575.25 = 13,199.39/x
3. Step 3: Cross multiply
   22,156.52x = 30,575.25 × 13,199.39
4. Step 4: Simplify right side
   22,156.52x = 403,574,496.22
5. Step 5: Solve for x
   x = 403,574,496.22/22,156.52
6. Step 6: Final answer
   x = 18,214.70