Finding the Fourth Proportional to 13,786.48, 19,025.49 and 7,498.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,786.48 : 19,025.49 = 7,498.86 : x
2. Step 2: Convert to fraction form
   13,786.48/19,025.49 = 7,498.86/x
3. Step 3: Cross multiply
   13,786.48x = 19,025.49 × 7,498.86
4. Step 4: Simplify right side
   13,786.48x = 142,669,485.94
5. Step 5: Solve for x
   x = 142,669,485.94/13,786.48
6. Step 6: Final answer
   x = 10,348.51