Finding the Fourth Proportional to 10,470.38, 15,705.59 and 2,679.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,470.38 : 15,705.59 = 2,679.26 : x
2. Step 2: Convert to fraction form
   10,470.38/15,705.59 = 2,679.26/x
3. Step 3: Cross multiply
   10,470.38x = 15,705.59 × 2,679.26
4. Step 4: Simplify right side
   10,470.38x = 42,079,267.14
5. Step 5: Solve for x
   x = 42,079,267.14/10,470.38
6. Step 6: Final answer
   x = 4,018.89