Finding the Fourth Proportional to 16,003.35, 24,007.76 and 7,121.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.35 : 24,007.76 = 7,121.90 : x
2. Step 2: Convert to fraction form
   16,003.35/24,007.76 = 7,121.90/x
3. Step 3: Cross multiply
   16,003.35x = 24,007.76 × 7,121.90
4. Step 4: Simplify right side
   16,003.35x = 170,980,865.94
5. Step 5: Solve for x
   x = 170,980,865.94/16,003.35
6. Step 6: Final answer
   x = 10,684.07