Finding the Fourth Proportional to 9,843.12, 13,583.40 and 5,366.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,843.12 : 13,583.40 = 5,366.76 : x
2. Step 2: Convert to fraction form
   9,843.12/13,583.40 = 5,366.76/x
3. Step 3: Cross multiply
   9,843.12x = 13,583.40 × 5,366.76
4. Step 4: Simplify right side
   9,843.12x = 72,898,776.72
5. Step 5: Solve for x
   x = 72,898,776.72/9,843.12
6. Step 6: Final answer
   x = 7,406.06