Finding the Fourth Proportional to 12,605.62, 17,395.51 and 7,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,605.62 : 17,395.51 = 7,892.50 : x
2. Step 2: Convert to fraction form
   12,605.62/17,395.51 = 7,892.50/x
3. Step 3: Cross multiply
   12,605.62x = 17,395.51 × 7,892.50
4. Step 4: Simplify right side
   12,605.62x = 137,294,062.68
5. Step 5: Solve for x
   x = 137,294,062.68/12,605.62
6. Step 6: Final answer
   x = 10,891.50