Finding the Fourth Proportional to 12,906.34, 17,813.46 and 7,603

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.34 : 17,813.46 = 7,603 : x
2. Step 2: Convert to fraction form
   12,906.34/17,813.46 = 7,603/x
3. Step 3: Cross multiply
   12,906.34x = 17,813.46 × 7,603
4. Step 4: Simplify right side
   12,906.34x = 135,435,736.38
5. Step 5: Solve for x
   x = 135,435,736.38/12,906.34
6. Step 6: Final answer
   x = 10,493.74