Finding the Fourth Proportional to 11,900.82, 17,851.38 and 5,661.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,900.82 : 17,851.38 = 5,661.42 : x
2. Step 2: Convert to fraction form
   11,900.82/17,851.38 = 5,661.42/x
3. Step 3: Cross multiply
   11,900.82x = 17,851.38 × 5,661.42
4. Step 4: Simplify right side
   11,900.82x = 101,064,159.76
5. Step 5: Solve for x
   x = 101,064,159.76/11,900.82
6. Step 6: Final answer
   x = 8,492.20