Finding the Fourth Proportional to 16,756.25, 23,131.51 and 9,681.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,756.25 : 23,131.51 = 9,681.31 : x
2. Step 2: Convert to fraction form
   16,756.25/23,131.51 = 9,681.31/x
3. Step 3: Cross multiply
   16,756.25x = 23,131.51 × 9,681.31
4. Step 4: Simplify right side
   16,756.25x = 223,943,193.67
5. Step 5: Solve for x
   x = 223,943,193.67/16,756.25
6. Step 6: Final answer
   x = 13,364.76