Finding the Fourth Proportional to 13,200.30, 18,216.41 and 7,232.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200.30 : 18,216.41 = 7,232.34 : x
2. Step 2: Convert to fraction form
   13,200.30/18,216.41 = 7,232.34/x
3. Step 3: Cross multiply
   13,200.30x = 18,216.41 × 7,232.34
4. Step 4: Simplify right side
   13,200.30x = 131,747,270.70
5. Step 5: Solve for x
   x = 131,747,270.70/13,200.30
6. Step 6: Final answer
   x = 9,980.63