Finding the Fourth Proportional to 13,738.88, 18,959.56 and 7,451.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,738.88 : 18,959.56 = 7,451.25 : x
2. Step 2: Convert to fraction form
   13,738.88/18,959.56 = 7,451.25/x
3. Step 3: Cross multiply
   13,738.88x = 18,959.56 × 7,451.25
4. Step 4: Simplify right side
   13,738.88x = 141,272,421.45
5. Step 5: Solve for x
   x = 141,272,421.45/13,738.88
6. Step 6: Final answer
   x = 10,282.67