Finding the Fourth Proportional to 16,335.72, 24,508.35 and 5,242.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,335.72 : 24,508.35 = 5,242.16 : x
2. Step 2: Convert to fraction form
   16,335.72/24,508.35 = 5,242.16/x
3. Step 3: Cross multiply
   16,335.72x = 24,508.35 × 5,242.16
4. Step 4: Simplify right side
   16,335.72x = 128,476,753.31
5. Step 5: Solve for x
   x = 128,476,753.31/16,335.72
6. Step 6: Final answer
   x = 7,864.77