Finding the Fourth Proportional to 10,900.56, 16,325.12 and 5,336.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.56 : 16,325.12 = 5,336.40 : x
2. Step 2: Convert to fraction form
   10,900.56/16,325.12 = 5,336.40/x
3. Step 3: Cross multiply
   10,900.56x = 16,325.12 × 5,336.40
4. Step 4: Simplify right side
   10,900.56x = 87,117,370.37
5. Step 5: Solve for x
   x = 87,117,370.37/10,900.56
6. Step 6: Final answer
   x = 7,992.01