Finding the Fourth Proportional to 45,454.41, 68,185.49 and 13,871.57

Step by Step Solution

1. Step 1: Write the proportion equation
   45,454.41 : 68,185.49 = 13,871.57 : x
2. Step 2: Convert to fraction form
   45,454.41/68,185.49 = 13,871.57/x
3. Step 3: Cross multiply
   45,454.41x = 68,185.49 × 13,871.57
4. Step 4: Simplify right side
   45,454.41x = 945,839,491.27
5. Step 5: Solve for x
   x = 945,839,491.27/45,454.41
6. Step 6: Final answer
   x = 20,808.53