Finding the Fourth Proportional to 10,662.68, 15,992.79 and 2,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.68 : 15,992.79 = 2,870.88 : x
2. Step 2: Convert to fraction form
   10,662.68/15,992.79 = 2,870.88/x
3. Step 3: Cross multiply
   10,662.68x = 15,992.79 × 2,870.88
4. Step 4: Simplify right side
   10,662.68x = 45,913,380.96
5. Step 5: Solve for x
   x = 45,913,380.96/10,662.68
6. Step 6: Final answer
   x = 4,305.99