Finding the Fourth Proportional to 12,410.70, 17,119.82 and 7,627.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,410.70 : 17,119.82 = 7,627.31 : x
2. Step 2: Convert to fraction form
   12,410.70/17,119.82 = 7,627.31/x
3. Step 3: Cross multiply
   12,410.70x = 17,119.82 × 7,627.31
4. Step 4: Simplify right side
   12,410.70x = 130,578,174.28
5. Step 5: Solve for x
   x = 130,578,174.28/12,410.70
6. Step 6: Final answer
   x = 10,521.42