Finding the Fourth Proportional to 45,540.72, 68,315.64 and 13,950.42

Step by Step Solution

1. Step 1: Write the proportion equation
   45,540.72 : 68,315.64 = 13,950.42 : x
2. Step 2: Convert to fraction form
   45,540.72/68,315.64 = 13,950.42/x
3. Step 3: Cross multiply
   45,540.72x = 68,315.64 × 13,950.42
4. Step 4: Simplify right side
   45,540.72x = 953,031,870.57
5. Step 5: Solve for x
   x = 953,031,870.57/45,540.72
6. Step 6: Final answer
   x = 20,927.03