Finding the Fourth Proportional to 16,841.29, 23,242.31 and 9,288.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,841.29 : 23,242.31 = 9,288.31 : x
2. Step 2: Convert to fraction form
   16,841.29/23,242.31 = 9,288.31/x
3. Step 3: Cross multiply
   16,841.29x = 23,242.31 × 9,288.31
4. Step 4: Simplify right side
   16,841.29x = 215,881,780.40
5. Step 5: Solve for x
   x = 215,881,780.40/16,841.29
6. Step 6: Final answer
   x = 12,818.60