Finding the Fourth Proportional to 10,162.72, 14,029.15 and 7,645.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,162.72 : 14,029.15 = 7,645.62 : x
2. Step 2: Convert to fraction form
   10,162.72/14,029.15 = 7,645.62/x
3. Step 3: Cross multiply
   10,162.72x = 14,029.15 × 7,645.62
4. Step 4: Simplify right side
   10,162.72x = 107,261,479.28
5. Step 5: Solve for x
   x = 107,261,479.28/10,162.72
6. Step 6: Final answer
   x = 10,554.41