Finding the Fourth Proportional to 12,906.84, 17,814.15 and 7,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.84 : 17,814.15 = 7,603.50 : x
2. Step 2: Convert to fraction form
   12,906.84/17,814.15 = 7,603.50/x
3. Step 3: Cross multiply
   12,906.84x = 17,814.15 × 7,603.50
4. Step 4: Simplify right side
   12,906.84x = 135,449,889.53
5. Step 5: Solve for x
   x = 135,449,889.53/12,906.84
6. Step 6: Final answer
   x = 10,494.43