Finding the Fourth Proportional to 10,676.61, 16,001.91 and 7,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,676.61 : 16,001.91 = 7,557.50 : x
2. Step 2: Convert to fraction form
   10,676.61/16,001.91 = 7,557.50/x
3. Step 3: Cross multiply
   10,676.61x = 16,001.91 × 7,557.50
4. Step 4: Simplify right side
   10,676.61x = 120,934,354.82
5. Step 5: Solve for x
   x = 120,934,354.82/10,676.61
6. Step 6: Final answer
   x = 11,327.04