Finding the Fourth Proportional to 9,665.44, 13,337.52 and 5,416.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.44 : 13,337.52 = 5,416.16 : x
2. Step 2: Convert to fraction form
   9,665.44/13,337.52 = 5,416.16/x
3. Step 3: Cross multiply
   9,665.44x = 13,337.52 × 5,416.16
4. Step 4: Simplify right side
   9,665.44x = 72,238,142.32
5. Step 5: Solve for x
   x = 72,238,142.32/9,665.44
6. Step 6: Final answer
   x = 7,473.86