Finding the Fourth Proportional to 11,900.72, 17,853.11 and 4,003.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,900.72 : 17,853.11 = 4,003.99 : x
2. Step 2: Convert to fraction form
   11,900.72/17,853.11 = 4,003.99/x
3. Step 3: Cross multiply
   11,900.72x = 17,853.11 × 4,003.99
4. Step 4: Simplify right side
   11,900.72x = 71,483,673.91
5. Step 5: Solve for x
   x = 71,483,673.91/11,900.72
6. Step 6: Final answer
   x = 6,006.67