Finding the Fourth Proportional to 9,339.01, 12,887.99 and 5,147.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,339.01 : 12,887.99 = 5,147.29 : x
2. Step 2: Convert to fraction form
   9,339.01/12,887.99 = 5,147.29/x
3. Step 3: Cross multiply
   9,339.01x = 12,887.99 × 5,147.29
4. Step 4: Simplify right side
   9,339.01x = 66,338,196.31
5. Step 5: Solve for x
   x = 66,338,196.31/9,339.01
6. Step 6: Final answer
   x = 7,103.34