Finding the Fourth Proportional to 10,004.32, 13,806.11 and 5,528.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,004.32 : 13,806.11 = 5,528.18 : x
2. Step 2: Convert to fraction form
   10,004.32/13,806.11 = 5,528.18/x
3. Step 3: Cross multiply
   10,004.32x = 13,806.11 × 5,528.18
4. Step 4: Simplify right side
   10,004.32x = 76,322,592.15
5. Step 5: Solve for x
   x = 76,322,592.15/10,004.32
6. Step 6: Final answer
   x = 7,628.96