Finding the Fourth Proportional to 20,494.01, 28,276.71 and 13,674.62

Step by Step Solution

1. Step 1: Write the proportion equation
   20,494.01 : 28,276.71 = 13,674.62 : x
2. Step 2: Convert to fraction form
   20,494.01/28,276.71 = 13,674.62/x
3. Step 3: Cross multiply
   20,494.01x = 28,276.71 × 13,674.62
4. Step 4: Simplify right side
   20,494.01x = 386,673,122.72
5. Step 5: Solve for x
   x = 386,673,122.72/20,494.01
6. Step 6: Final answer
   x = 18,867.62