Finding the Fourth Proportional to 16,457.58, 22,707.54 and 9,381.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,457.58 : 22,707.54 = 9,381.42 : x
2. Step 2: Convert to fraction form
   16,457.58/22,707.54 = 9,381.42/x
3. Step 3: Cross multiply
   16,457.58x = 22,707.54 × 9,381.42
4. Step 4: Simplify right side
   16,457.58x = 213,028,969.91
5. Step 5: Solve for x
   x = 213,028,969.91/16,457.58
6. Step 6: Final answer
   x = 12,944.12