Finding the Fourth Proportional to 11,683.50, 17,440.53 and 10,816.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,683.50 : 17,440.53 = 10,816.29 : x
2. Step 2: Convert to fraction form
   11,683.50/17,440.53 = 10,816.29/x
3. Step 3: Cross multiply
   11,683.50x = 17,440.53 × 10,816.29
4. Step 4: Simplify right side
   11,683.50x = 188,641,830.23
5. Step 5: Solve for x
   x = 188,641,830.23/11,683.50
6. Step 6: Final answer
   x = 16,146.00