Finding the Fourth Proportional to 9,665.07, 13,338.87 and 5,416.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.07 : 13,338.87 = 5,416.83 : x
2. Step 2: Convert to fraction form
   9,665.07/13,338.87 = 5,416.83/x
3. Step 3: Cross multiply
   9,665.07x = 13,338.87 × 5,416.83
4. Step 4: Simplify right side
   9,665.07x = 72,254,391.18
5. Step 5: Solve for x
   x = 72,254,391.18/9,665.07
6. Step 6: Final answer
   x = 7,475.83