Finding the Fourth Proportional to 13,327.46, 19,977.31 and 5,426.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,327.46 : 19,977.31 = 5,426.58 : x
2. Step 2: Convert to fraction form
   13,327.46/19,977.31 = 5,426.58/x
3. Step 3: Cross multiply
   13,327.46x = 19,977.31 × 5,426.58
4. Step 4: Simplify right side
   13,327.46x = 108,408,470.90
5. Step 5: Solve for x
   x = 108,408,470.90/13,327.46
6. Step 6: Final answer
   x = 8,134.22