Finding the Fourth Proportional to 13,249.52, 19,879.71 and 7,007.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,249.52 : 19,879.71 = 7,007.86 : x
2. Step 2: Convert to fraction form
   13,249.52/19,879.71 = 7,007.86/x
3. Step 3: Cross multiply
   13,249.52x = 19,879.71 × 7,007.86
4. Step 4: Simplify right side
   13,249.52x = 139,314,174.82
5. Step 5: Solve for x
   x = 139,314,174.82/13,249.52
6. Step 6: Final answer
   x = 10,514.66