Finding the Fourth Proportional to 10,081.72, 13,912.77 and 5,605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.72 : 13,912.77 = 5,605.48 : x
2. Step 2: Convert to fraction form
   10,081.72/13,912.77 = 5,605.48/x
3. Step 3: Cross multiply
   10,081.72x = 13,912.77 × 5,605.48
4. Step 4: Simplify right side
   10,081.72x = 77,987,753.98
5. Step 5: Solve for x
   x = 77,987,753.98/10,081.72
6. Step 6: Final answer
   x = 7,735.56