Finding the Fourth Proportional to 11,676.80, 16,113.45 and 7,200.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,676.80 : 16,113.45 = 7,200.96 : x
2. Step 2: Convert to fraction form
   11,676.80/16,113.45 = 7,200.96/x
3. Step 3: Cross multiply
   11,676.80x = 16,113.45 × 7,200.96
4. Step 4: Simplify right side
   11,676.80x = 116,032,308.91
5. Step 5: Solve for x
   x = 116,032,308.91/11,676.80
6. Step 6: Final answer
   x = 9,937.00