Finding the Fourth Proportional to 11,783.41, 17,674.64 and 3,992.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,783.41 : 17,674.64 = 3,992.22 : x
2. Step 2: Convert to fraction form
   11,783.41/17,674.64 = 3,992.22/x
3. Step 3: Cross multiply
   11,783.41x = 17,674.64 × 3,992.22
4. Step 4: Simplify right side
   11,783.41x = 70,561,046.31
5. Step 5: Solve for x
   x = 70,561,046.31/11,783.41
6. Step 6: Final answer
   x = 5,988.17