Finding the Fourth Proportional to 11,928.24, 16,458.32 and 7,212.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.24 : 16,458.32 = 7,212.42 : x
2. Step 2: Convert to fraction form
   11,928.24/16,458.32 = 7,212.42/x
3. Step 3: Cross multiply
   11,928.24x = 16,458.32 × 7,212.42
4. Step 4: Simplify right side
   11,928.24x = 118,704,316.33
5. Step 5: Solve for x
   x = 118,704,316.33/11,928.24
6. Step 6: Final answer
   x = 9,951.54