Finding the Fourth Proportional to 12,622.30, 17,420.07 and 7,588.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,622.30 : 17,420.07 = 7,588.15 : x
2. Step 2: Convert to fraction form
   12,622.30/17,420.07 = 7,588.15/x
3. Step 3: Cross multiply
   12,622.30x = 17,420.07 × 7,588.15
4. Step 4: Simplify right side
   12,622.30x = 132,186,104.17
5. Step 5: Solve for x
   x = 132,186,104.17/12,622.30
6. Step 6: Final answer
   x = 10,472.43