Finding the Fourth Proportional to 11,736.31, 16,196.11 and 7,021.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,736.31 : 16,196.11 = 7,021.71 : x
2. Step 2: Convert to fraction form
   11,736.31/16,196.11 = 7,021.71/x
3. Step 3: Cross multiply
   11,736.31x = 16,196.11 × 7,021.71
4. Step 4: Simplify right side
   11,736.31x = 113,724,387.55
5. Step 5: Solve for x
   x = 113,724,387.55/11,736.31
6. Step 6: Final answer
   x = 9,689.96