Finding the Fourth Proportional to 10,853.12, 16,271.04 and 5,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.12 : 16,271.04 = 5,006.72 : x
2. Step 2: Convert to fraction form
   10,853.12/16,271.04 = 5,006.72/x
3. Step 3: Cross multiply
   10,853.12x = 16,271.04 × 5,006.72
4. Step 4: Simplify right side
   10,853.12x = 81,464,541.39
5. Step 5: Solve for x
   x = 81,464,541.39/10,853.12
6. Step 6: Final answer
   x = 7,506.09