Finding the Fourth Proportional to 16,470.51, 22,728.78 and 9,756.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470.51 : 22,728.78 = 9,756.18 : x
2. Step 2: Convert to fraction form
   16,470.51/22,728.78 = 9,756.18/x
3. Step 3: Cross multiply
   16,470.51x = 22,728.78 × 9,756.18
4. Step 4: Simplify right side
   16,470.51x = 221,746,068.86
5. Step 5: Solve for x
   x = 221,746,068.86/16,470.51
6. Step 6: Final answer
   x = 13,463.22