Finding the Fourth Proportional to 16,443.42, 22,693.40 and 9,372.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,443.42 : 22,693.40 = 9,372.12 : x
2. Step 2: Convert to fraction form
   16,443.42/22,693.40 = 9,372.12/x
3. Step 3: Cross multiply
   16,443.42x = 22,693.40 × 9,372.12
4. Step 4: Simplify right side
   16,443.42x = 212,685,268.01
5. Step 5: Solve for x
   x = 212,685,268.01/16,443.42
6. Step 6: Final answer
   x = 12,934.37