Finding the Fourth Proportional to 13,495.50, 18,626.31 and 7,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,495.50 : 18,626.31 = 7,906.50 : x
2. Step 2: Convert to fraction form
   13,495.50/18,626.31 = 7,906.50/x
3. Step 3: Cross multiply
   13,495.50x = 18,626.31 × 7,906.50
4. Step 4: Simplify right side
   13,495.50x = 147,268,920.02
5. Step 5: Solve for x
   x = 147,268,920.02/13,495.50
6. Step 6: Final answer
   x = 10,912.45