Finding the Fourth Proportional to 9,665.53, 13,339.37 and 5,417.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.53 : 13,339.37 = 5,417.31 : x
2. Step 2: Convert to fraction form
   9,665.53/13,339.37 = 5,417.31/x
3. Step 3: Cross multiply
   9,665.53x = 13,339.37 × 5,417.31
4. Step 4: Simplify right side
   9,665.53x = 72,263,488.95
5. Step 5: Solve for x
   x = 72,263,488.95/9,665.53
6. Step 6: Final answer
   x = 7,476.41