Finding the Fourth Proportional to 16,128.25, 24,188.19 and 7,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,128.25 : 24,188.19 = 7,238.50 : x
2. Step 2: Convert to fraction form
   16,128.25/24,188.19 = 7,238.50/x
3. Step 3: Cross multiply
   16,128.25x = 24,188.19 × 7,238.50
4. Step 4: Simplify right side
   16,128.25x = 175,086,213.32
5. Step 5: Solve for x
   x = 175,086,213.32/16,128.25
6. Step 6: Final answer
   x = 10,855.87