Finding the Fourth Proportional to 13,738.86, 18,959.79 and 7,451.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,738.86 : 18,959.79 = 7,451.34 : x
2. Step 2: Convert to fraction form
   13,738.86/18,959.79 = 7,451.34/x
3. Step 3: Cross multiply
   13,738.86x = 18,959.79 × 7,451.34
4. Step 4: Simplify right side
   13,738.86x = 141,275,841.62
5. Step 5: Solve for x
   x = 141,275,841.62/13,738.86
6. Step 6: Final answer
   x = 10,282.94