Finding the Fourth Proportional to 11,973.78, 17,962.68 and 5,399.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,973.78 : 17,962.68 = 5,399.82 : x
2. Step 2: Convert to fraction form
   11,973.78/17,962.68 = 5,399.82/x
3. Step 3: Cross multiply
   11,973.78x = 17,962.68 × 5,399.82
4. Step 4: Simplify right side
   11,973.78x = 96,995,238.72
5. Step 5: Solve for x
   x = 96,995,238.72/11,973.78
6. Step 6: Final answer
   x = 8,100.64