Finding the Fourth Proportional to 13,761.56, 20,642.43 and 3,373.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,761.56 : 20,642.43 = 3,373.31 : x
2. Step 2: Convert to fraction form
   13,761.56/20,642.43 = 3,373.31/x
3. Step 3: Cross multiply
   13,761.56x = 20,642.43 × 3,373.31
4. Step 4: Simplify right side
   13,761.56x = 69,633,315.54
5. Step 5: Solve for x
   x = 69,633,315.54/13,761.56
6. Step 6: Final answer
   x = 5,059.99