Finding the Fourth Proportional to 10,662.20, 14,712.83 and 10,303.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.20 : 14,712.83 = 10,303.91 : x
2. Step 2: Convert to fraction form
   10,662.20/14,712.83 = 10,303.91/x
3. Step 3: Cross multiply
   10,662.20x = 14,712.83 × 10,303.91
4. Step 4: Simplify right side
   10,662.20x = 151,599,738.71
5. Step 5: Solve for x
   x = 151,599,738.71/10,662.20
6. Step 6: Final answer
   x = 14,218.43