Finding the Fourth Proportional to 11,693.01, 17,540.96 and 3,900.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,693.01 : 17,540.96 = 3,900.09 : x
2. Step 2: Convert to fraction form
   11,693.01/17,540.96 = 3,900.09/x
3. Step 3: Cross multiply
   11,693.01x = 17,540.96 × 3,900.09
4. Step 4: Simplify right side
   11,693.01x = 68,411,303.19
5. Step 5: Solve for x
   x = 68,411,303.19/11,693.01
6. Step 6: Final answer
   x = 5,850.62