Finding the Fourth Proportional to 13,216.55, 18,238.83 and 7,248.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.55 : 18,238.83 = 7,248.32 : x
2. Step 2: Convert to fraction form
   13,216.55/18,238.83 = 7,248.32/x
3. Step 3: Cross multiply
   13,216.55x = 18,238.83 × 7,248.32
4. Step 4: Simplify right side
   13,216.55x = 132,200,876.27
5. Step 5: Solve for x
   x = 132,200,876.27/13,216.55
6. Step 6: Final answer
   x = 10,002.68