Finding the Fourth Proportional to 13,149.76, 18,150.72 and 7,564.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,149.76 : 18,150.72 = 7,564.48 : x
2. Step 2: Convert to fraction form
   13,149.76/18,150.72 = 7,564.48/x
3. Step 3: Cross multiply
   13,149.76x = 18,150.72 × 7,564.48
4. Step 4: Simplify right side
   13,149.76x = 137,300,758.43
5. Step 5: Solve for x
   x = 137,300,758.43/13,149.76
6. Step 6: Final answer
   x = 10,441.31