Finding the Fourth Proportional to 12,606.12, 17,396.20 and 7,893

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.12 : 17,396.20 = 7,893 : x
2. Step 2: Convert to fraction form
   12,606.12/17,396.20 = 7,893/x
3. Step 3: Cross multiply
   12,606.12x = 17,396.20 × 7,893
4. Step 4: Simplify right side
   12,606.12x = 137,308,206.60
5. Step 5: Solve for x
   x = 137,308,206.60/12,606.12
6. Step 6: Final answer
   x = 10,892.19