Finding the Fourth Proportional to 11,736.63, 16,197.30 and 7,021.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,736.63 : 16,197.30 = 7,021.89 : x
2. Step 2: Convert to fraction form
   11,736.63/16,197.30 = 7,021.89/x
3. Step 3: Cross multiply
   11,736.63x = 16,197.30 × 7,021.89
4. Step 4: Simplify right side
   11,736.63x = 113,735,658.90
5. Step 5: Solve for x
   x = 113,735,658.90/11,736.63
6. Step 6: Final answer
   x = 9,690.66