Finding the Fourth Proportional to 13,152.50, 18,150.99 and 7,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.50 : 18,150.99 = 7,563.50 : x
2. Step 2: Convert to fraction form
   13,152.50/18,150.99 = 7,563.50/x
3. Step 3: Cross multiply
   13,152.50x = 18,150.99 × 7,563.50
4. Step 4: Simplify right side
   13,152.50x = 137,285,012.87
5. Step 5: Solve for x
   x = 137,285,012.87/13,152.50
6. Step 6: Final answer
   x = 10,437.94