Finding the Fourth Proportional to 10,081.32, 13,912.16 and 5,605.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.32 : 13,912.16 = 5,605.04 : x
2. Step 2: Convert to fraction form
   10,081.32/13,912.16 = 5,605.04/x
3. Step 3: Cross multiply
   10,081.32x = 13,912.16 × 5,605.04
4. Step 4: Simplify right side
   10,081.32x = 77,978,167.87
5. Step 5: Solve for x
   x = 77,978,167.87/10,081.32
6. Step 6: Final answer
   x = 7,734.91