Finding the Fourth Proportional to 7,216.61, 10,826.81 and 3,056.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,216.61 : 10,826.81 = 3,056.78 : x
2. Step 2: Convert to fraction form
   7,216.61/10,826.81 = 3,056.78/x
3. Step 3: Cross multiply
   7,216.61x = 10,826.81 × 3,056.78
4. Step 4: Simplify right side
   7,216.61x = 33,095,199.52
5. Step 5: Solve for x
   x = 33,095,199.52/7,216.61
6. Step 6: Final answer
   x = 4,585.98