Finding the Fourth Proportional to 9,883.62, 13,639.59 and 5,910.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,883.62 : 13,639.59 = 5,910.30 : x
2. Step 2: Convert to fraction form
   9,883.62/13,639.59 = 5,910.30/x
3. Step 3: Cross multiply
   9,883.62x = 13,639.59 × 5,910.30
4. Step 4: Simplify right side
   9,883.62x = 80,614,068.78
5. Step 5: Solve for x
   x = 80,614,068.78/9,883.62
6. Step 6: Final answer
   x = 8,156.33