Finding the Fourth Proportional to 16,447.32, 22,697.01 and 9,372.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,447.32 : 22,697.01 = 9,372.78 : x
2. Step 2: Convert to fraction form
   16,447.32/22,697.01 = 9,372.78/x
3. Step 3: Cross multiply
   16,447.32x = 22,697.01 × 9,372.78
4. Step 4: Simplify right side
   16,447.32x = 212,734,081.39
5. Step 5: Solve for x
   x = 212,734,081.39/16,447.32
6. Step 6: Final answer
   x = 12,934.27