Finding the Fourth Proportional to 10,995.20, 16,496.45 and 7,311.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,995.20 : 16,496.45 = 7,311.93 : x
2. Step 2: Convert to fraction form
   10,995.20/16,496.45 = 7,311.93/x
3. Step 3: Cross multiply
   10,995.20x = 16,496.45 × 7,311.93
4. Step 4: Simplify right side
   10,995.20x = 120,620,851.09
5. Step 5: Solve for x
   x = 120,620,851.09/10,995.20
6. Step 6: Final answer
   x = 10,970.32