Finding the Fourth Proportional to 13,882.73, 20,820.38 and 5,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,882.73 : 20,820.38 = 5,116.50 : x
2. Step 2: Convert to fraction form
   13,882.73/20,820.38 = 5,116.50/x
3. Step 3: Cross multiply
   13,882.73x = 20,820.38 × 5,116.50
4. Step 4: Simplify right side
   13,882.73x = 106,527,448.69
5. Step 5: Solve for x
   x = 106,527,448.69/13,882.73
6. Step 6: Final answer
   x = 7,673.38