Finding the Fourth Proportional to 9,284.60, 12,811.94 and 5,455.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,284.60 : 12,811.94 = 5,455.83 : x
2. Step 2: Convert to fraction form
   9,284.60/12,811.94 = 5,455.83/x
3. Step 3: Cross multiply
   9,284.60x = 12,811.94 × 5,455.83
4. Step 4: Simplify right side
   9,284.60x = 69,899,766.61
5. Step 5: Solve for x
   x = 69,899,766.61/9,284.60
6. Step 6: Final answer
   x = 7,528.57