Finding the Fourth Proportional to 13,786.35, 19,025.06 and 7,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,786.35 : 19,025.06 = 7,498.72 : x
2. Step 2: Convert to fraction form
   13,786.35/19,025.06 = 7,498.72/x
3. Step 3: Cross multiply
   13,786.35x = 19,025.06 × 7,498.72
4. Step 4: Simplify right side
   13,786.35x = 142,663,597.92
5. Step 5: Solve for x
   x = 142,663,597.92/13,786.35
6. Step 6: Final answer
   x = 10,348.18