Finding the Fourth Proportional to 11,697.31, 16,142.34 and 6,392.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,697.31 : 16,142.34 = 6,392.22 : x
2. Step 2: Convert to fraction form
   11,697.31/16,142.34 = 6,392.22/x
3. Step 3: Cross multiply
   11,697.31x = 16,142.34 × 6,392.22
4. Step 4: Simplify right side
   11,697.31x = 103,185,388.59
5. Step 5: Solve for x
   x = 103,185,388.59/11,697.31
6. Step 6: Final answer
   x = 8,821.29