Finding the Fourth Proportional to 13,788.48, 19,028.25 and 7,500.87

Step by Step Solution

1. Step 1: Write the proportion equation
   13,788.48 : 19,028.25 = 7,500.87 : x
2. Step 2: Convert to fraction form
   13,788.48/19,028.25 = 7,500.87/x
3. Step 3: Cross multiply
   13,788.48x = 19,028.25 × 7,500.87
4. Step 4: Simplify right side
   13,788.48x = 142,728,429.58
5. Step 5: Solve for x
   x = 142,728,429.58/13,788.48
6. Step 6: Final answer
   x = 10,351.28