Finding the Fourth Proportional to 12,622.42, 17,418.96 and 7,320.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,622.42 : 17,418.96 = 7,320.34 : x
2. Step 2: Convert to fraction form
   12,622.42/17,418.96 = 7,320.34/x
3. Step 3: Cross multiply
   12,622.42x = 17,418.96 × 7,320.34
4. Step 4: Simplify right side
   12,622.42x = 127,512,709.65
5. Step 5: Solve for x
   x = 127,512,709.65/12,622.42
6. Step 6: Final answer
   x = 10,102.08