Finding the Fourth Proportional to 34,516.38, 51,764.56 and 13,451.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,516.38 : 51,764.56 = 13,451.72 : x
2. Step 2: Convert to fraction form
   34,516.38/51,764.56 = 13,451.72/x
3. Step 3: Cross multiply
   34,516.38x = 51,764.56 × 13,451.72
4. Step 4: Simplify right side
   34,516.38x = 696,322,367.04
5. Step 5: Solve for x
   x = 696,322,367.04/34,516.38
6. Step 6: Final answer
   x = 20,173.68