Finding the Fourth Proportional to 12,606.18, 17,391.48 and 7,570.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.18 : 17,391.48 = 7,570.68 : x
2. Step 2: Convert to fraction form
   12,606.18/17,391.48 = 7,570.68/x
3. Step 3: Cross multiply
   12,606.18x = 17,391.48 × 7,570.68
4. Step 4: Simplify right side
   12,606.18x = 131,665,329.81
5. Step 5: Solve for x
   x = 131,665,329.81/12,606.18
6. Step 6: Final answer
   x = 10,444.51