Finding the Fourth Proportional to 9,836.72, 13,568.52 and 5,855.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,836.72 : 13,568.52 = 5,855.12 : x
2. Step 2: Convert to fraction form
   9,836.72/13,568.52 = 5,855.12/x
3. Step 3: Cross multiply
   9,836.72x = 13,568.52 × 5,855.12
4. Step 4: Simplify right side
   9,836.72x = 79,445,312.82
5. Step 5: Solve for x
   x = 79,445,312.82/9,836.72
6. Step 6: Final answer
   x = 8,076.40