Finding the Fourth Proportional to 13,642.52, 18,823.83 and 7,976.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,642.52 : 18,823.83 = 7,976.16 : x
2. Step 2: Convert to fraction form
   13,642.52/18,823.83 = 7,976.16/x
3. Step 3: Cross multiply
   13,642.52x = 18,823.83 × 7,976.16
4. Step 4: Simplify right side
   13,642.52x = 150,141,879.89
5. Step 5: Solve for x
   x = 150,141,879.89/13,642.52
6. Step 6: Final answer
   x = 11,005.44