Finding the Fourth Proportional to 16,501.29, 22,762.58 and 9,780.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,501.29 : 22,762.58 = 9,780.45 : x
2. Step 2: Convert to fraction form
   16,501.29/22,762.58 = 9,780.45/x
3. Step 3: Cross multiply
   16,501.29x = 22,762.58 × 9,780.45
4. Step 4: Simplify right side
   16,501.29x = 222,628,275.56
5. Step 5: Solve for x
   x = 222,628,275.56/16,501.29
6. Step 6: Final answer
   x = 13,491.57