Finding the Fourth Proportional to 11,669.01, 17,499.23 and 4,271.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,669.01 : 17,499.23 = 4,271.28 : x
2. Step 2: Convert to fraction form
   11,669.01/17,499.23 = 4,271.28/x
3. Step 3: Cross multiply
   11,669.01x = 17,499.23 × 4,271.28
4. Step 4: Simplify right side
   11,669.01x = 74,744,089.76
5. Step 5: Solve for x
   x = 74,744,089.76/11,669.01
6. Step 6: Final answer
   x = 6,405.35