Finding the Fourth Proportional to 9,804.45, 13,527.96 and 5,555.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,804.45 : 13,527.96 = 5,555.15 : x
2. Step 2: Convert to fraction form
   9,804.45/13,527.96 = 5,555.15/x
3. Step 3: Cross multiply
   9,804.45x = 13,527.96 × 5,555.15
4. Step 4: Simplify right side
   9,804.45x = 75,149,809.25
5. Step 5: Solve for x
   x = 75,149,809.25/9,804.45
6. Step 6: Final answer
   x = 7,664.86