Finding the Fourth Proportional to 10,809.96, 14,923.62 and 7,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,809.96 : 14,923.62 = 7,470.72 : x
2. Step 2: Convert to fraction form
   10,809.96/14,923.62 = 7,470.72/x
3. Step 3: Cross multiply
   10,809.96x = 14,923.62 × 7,470.72
4. Step 4: Simplify right side
   10,809.96x = 111,490,186.41
5. Step 5: Solve for x
   x = 111,490,186.41/10,809.96
6. Step 6: Final answer
   x = 10,313.65