Finding the Fourth Proportional to 13,738.62, 18,959.31 and 7,451.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,738.62 : 18,959.31 = 7,451.00 : x
2. Step 2: Convert to fraction form
   13,738.62/18,959.31 = 7,451.00/x
3. Step 3: Cross multiply
   13,738.62x = 18,959.31 × 7,451.00
4. Step 4: Simplify right side
   13,738.62x = 141,265,724.01
5. Step 5: Solve for x
   x = 141,265,724.01/13,738.62
6. Step 6: Final answer
   x = 10,282.38