Finding the Fourth Proportional to 9,369.02, 14,039.62 and 3,815.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,369.02 : 14,039.62 = 3,815.57 : x
2. Step 2: Convert to fraction form
   9,369.02/14,039.62 = 3,815.57/x
3. Step 3: Cross multiply
   9,369.02x = 14,039.62 × 3,815.57
4. Step 4: Simplify right side
   9,369.02x = 53,569,152.88
5. Step 5: Solve for x
   x = 53,569,152.88/9,369.02
6. Step 6: Final answer
   x = 5,717.69