Finding the Fourth Proportional to 10,810.45, 16,186.35 and 5,605.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.45 : 16,186.35 = 5,605.39 : x
2. Step 2: Convert to fraction form
   10,810.45/16,186.35 = 5,605.39/x
3. Step 3: Cross multiply
   10,810.45x = 16,186.35 × 5,605.39
4. Step 4: Simplify right side
   10,810.45x = 90,730,804.43
5. Step 5: Solve for x
   x = 90,730,804.43/10,810.45
6. Step 6: Final answer
   x = 8,392.88