Finding the Fourth Proportional to 45,074.72, 67,613.10 and 13,910

Step by Step Solution

1. Step 1: Write the proportion equation
   45,074.72 : 67,613.10 = 13,910 : x
2. Step 2: Convert to fraction form
   45,074.72/67,613.10 = 13,910/x
3. Step 3: Cross multiply
   45,074.72x = 67,613.10 × 13,910
4. Step 4: Simplify right side
   45,074.72x = 940,498,221.00
5. Step 5: Solve for x
   x = 940,498,221.00/45,074.72
6. Step 6: Final answer
   x = 20,865.31