Finding the Fourth Proportional to 13,208.46, 18,227.88 and 7,903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,208.46 : 18,227.88 = 7,903.50 : x
2. Step 2: Convert to fraction form
   13,208.46/18,227.88 = 7,903.50/x
3. Step 3: Cross multiply
   13,208.46x = 18,227.88 × 7,903.50
4. Step 4: Simplify right side
   13,208.46x = 144,064,049.58
5. Step 5: Solve for x
   x = 144,064,049.58/13,208.46
6. Step 6: Final answer
   x = 10,906.95