Finding the Fourth Proportional to 9,538.38, 14,312.16 and 3,993.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,538.38 : 14,312.16 = 3,993.12 : x
2. Step 2: Convert to fraction form
   9,538.38/14,312.16 = 3,993.12/x
3. Step 3: Cross multiply
   9,538.38x = 14,312.16 × 3,993.12
4. Step 4: Simplify right side
   9,538.38x = 57,150,172.34
5. Step 5: Solve for x
   x = 57,150,172.34/9,538.38
6. Step 6: Final answer
   x = 5,991.60