Finding the Fourth Proportional to 10,081.50, 13,912.16 and 5,605.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.50 : 13,912.16 = 5,605.13 : x
2. Step 2: Convert to fraction form
   10,081.50/13,912.16 = 5,605.13/x
3. Step 3: Cross multiply
   10,081.50x = 13,912.16 × 5,605.13
4. Step 4: Simplify right side
   10,081.50x = 77,979,472.14
5. Step 5: Solve for x
   x = 77,979,472.14/10,081.50
6. Step 6: Final answer
   x = 7,734.91