Finding the Fourth Proportional to 10,945.85, 16,404.89 and 6,995.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,945.85 : 16,404.89 = 6,995.57 : x
2. Step 2: Convert to fraction form
   10,945.85/16,404.89 = 6,995.57/x
3. Step 3: Cross multiply
   10,945.85x = 16,404.89 × 6,995.57
4. Step 4: Simplify right side
   10,945.85x = 114,761,439.34
5. Step 5: Solve for x
   x = 114,761,439.34/10,945.85
6. Step 6: Final answer
   x = 10,484.48