Finding the Fourth Proportional to 9,339, 12,887.82 and 5,613

Step by Step Solution

1. Step 1: Write the proportion equation
   9,339 : 12,887.82 = 5,613 : x
2. Step 2: Convert to fraction form
   9,339/12,887.82 = 5,613/x
3. Step 3: Cross multiply
   9,339x = 12,887.82 × 5,613
4. Step 4: Simplify right side
   9,339x = 72,339,333.66
5. Step 5: Solve for x
   x = 72,339,333.66/9,339
6. Step 6: Final answer
   x = 7,745.94