Finding the Fourth Proportional to 5,639.82, 7,783.52 and 4,068.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,639.82 : 7,783.52 = 4,068.82 : x
2. Step 2: Convert to fraction form
   5,639.82/7,783.52 = 4,068.82/x
3. Step 3: Cross multiply
   5,639.82x = 7,783.52 × 4,068.82
4. Step 4: Simplify right side
   5,639.82x = 31,669,741.85
5. Step 5: Solve for x
   x = 31,669,741.85/5,639.82
6. Step 6: Final answer
   x = 5,615.38