Finding the Fourth Proportional to 10,262.18, 14,221.31 and 10,065.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,262.18 : 14,221.31 = 10,065.32 : x
2. Step 2: Convert to fraction form
   10,262.18/14,221.31 = 10,065.32/x
3. Step 3: Cross multiply
   10,262.18x = 14,221.31 × 10,065.32
4. Step 4: Simplify right side
   10,262.18x = 143,142,035.97
5. Step 5: Solve for x
   x = 143,142,035.97/10,262.18
6. Step 6: Final answer
   x = 13,948.50