Finding the Fourth Proportional to 9,843.20, 13,583.30 and 5,366.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,843.20 : 13,583.30 = 5,366.88 : x
2. Step 2: Convert to fraction form
   9,843.20/13,583.30 = 5,366.88/x
3. Step 3: Cross multiply
   9,843.20x = 13,583.30 × 5,366.88
4. Step 4: Simplify right side
   9,843.20x = 72,899,941.10
5. Step 5: Solve for x
   x = 72,899,941.10/9,843.20
6. Step 6: Final answer
   x = 7,406.12