Finding the Fourth Proportional to 9,899.83, 14,846.79 and 5,396.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,899.83 : 14,846.79 = 5,396.19 : x
2. Step 2: Convert to fraction form
   9,899.83/14,846.79 = 5,396.19/x
3. Step 3: Cross multiply
   9,899.83x = 14,846.79 × 5,396.19
4. Step 4: Simplify right side
   9,899.83x = 80,116,099.73
5. Step 5: Solve for x
   x = 80,116,099.73/9,899.83
6. Step 6: Final answer
   x = 8,092.67