Finding the Fourth Proportional to 12,297.80, 18,444.72 and 3,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,297.80 : 18,444.72 = 3,530.72 : x
2. Step 2: Convert to fraction form
   12,297.80/18,444.72 = 3,530.72/x
3. Step 3: Cross multiply
   12,297.80x = 18,444.72 × 3,530.72
4. Step 4: Simplify right side
   12,297.80x = 65,123,141.80
5. Step 5: Solve for x
   x = 65,123,141.80/12,297.80
6. Step 6: Final answer
   x = 5,295.51