Finding the Fourth Proportional to 10,081.76, 13,911.30 and 5,605.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.76 : 13,911.30 = 5,605.56 : x
2. Step 2: Convert to fraction form
   10,081.76/13,911.30 = 5,605.56/x
3. Step 3: Cross multiply
   10,081.76x = 13,911.30 × 5,605.56
4. Step 4: Simplify right side
   10,081.76x = 77,980,626.83
5. Step 5: Solve for x
   x = 77,980,626.83/10,081.76
6. Step 6: Final answer
   x = 7,734.82