Finding the Fourth Proportional to 11,928.18, 16,457.52 and 7,456.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.18 : 16,457.52 = 7,456.46 : x
2. Step 2: Convert to fraction form
   11,928.18/16,457.52 = 7,456.46/x
3. Step 3: Cross multiply
   11,928.18x = 16,457.52 × 7,456.46
4. Step 4: Simplify right side
   11,928.18x = 122,714,839.58
5. Step 5: Solve for x
   x = 122,714,839.58/11,928.18
6. Step 6: Final answer
   x = 10,287.81