Finding the Fourth Proportional to 10,662.05, 15,999.99 and 4,818.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.05 : 15,999.99 = 4,818.71 : x
2. Step 2: Convert to fraction form
   10,662.05/15,999.99 = 4,818.71/x
3. Step 3: Cross multiply
   10,662.05x = 15,999.99 × 4,818.71
4. Step 4: Simplify right side
   10,662.05x = 77,099,207.72
5. Step 5: Solve for x
   x = 77,099,207.72/10,662.05
6. Step 6: Final answer
   x = 7,231.18