Finding the Fourth Proportional to 10,666.18, 16,001.60 and 3,271.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,666.18 : 16,001.60 = 3,271.18 : x
2. Step 2: Convert to fraction form
   10,666.18/16,001.60 = 3,271.18/x
3. Step 3: Cross multiply
   10,666.18x = 16,001.60 × 3,271.18
4. Step 4: Simplify right side
   10,666.18x = 52,344,113.89
5. Step 5: Solve for x
   x = 52,344,113.89/10,666.18
6. Step 6: Final answer
   x = 4,907.48