Finding the Fourth Proportional to 9,336.55, 13,992.71 and 3,783.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.55 : 13,992.71 = 3,783.40 : x
2. Step 2: Convert to fraction form
   9,336.55/13,992.71 = 3,783.40/x
3. Step 3: Cross multiply
   9,336.55x = 13,992.71 × 3,783.40
4. Step 4: Simplify right side
   9,336.55x = 52,940,064.17
5. Step 5: Solve for x
   x = 52,940,064.17/9,336.55
6. Step 6: Final answer
   x = 5,670.20