Finding the Fourth Proportional to 12,621.24, 17,415.72 and 7,584.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,621.24 : 17,415.72 = 7,584.72 : x
2. Step 2: Convert to fraction form
   12,621.24/17,415.72 = 7,584.72/x
3. Step 3: Cross multiply
   12,621.24x = 17,415.72 × 7,584.72
4. Step 4: Simplify right side
   12,621.24x = 132,093,359.80
5. Step 5: Solve for x
   x = 132,093,359.80/12,621.24
6. Step 6: Final answer
   x = 10,465.96