Finding the Fourth Proportional to 6,271.72, 9,409.02 and 2,111.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,271.72 : 9,409.02 = 2,111.62 : x
2. Step 2: Convert to fraction form
   6,271.72/9,409.02 = 2,111.62/x
3. Step 3: Cross multiply
   6,271.72x = 9,409.02 × 2,111.62
4. Step 4: Simplify right side
   6,271.72x = 19,868,227.77
5. Step 5: Solve for x
   x = 19,868,227.77/6,271.72
6. Step 6: Final answer
   x = 3,167.91