Finding the Fourth Proportional to 12,622.05, 17,419.73 and 7,587.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,622.05 : 17,419.73 = 7,587.90 : x
2. Step 2: Convert to fraction form
   12,622.05/17,419.73 = 7,587.90/x
3. Step 3: Cross multiply
   12,622.05x = 17,419.73 × 7,587.90
4. Step 4: Simplify right side
   12,622.05x = 132,179,131.33
5. Step 5: Solve for x
   x = 132,179,131.33/12,622.05
6. Step 6: Final answer
   x = 10,472.08