Finding the Fourth Proportional to 8,784.06, 13,178.22 and 3,589.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,784.06 : 13,178.22 = 3,589.94 : x
2. Step 2: Convert to fraction form
   8,784.06/13,178.22 = 3,589.94/x
3. Step 3: Cross multiply
   8,784.06x = 13,178.22 × 3,589.94
4. Step 4: Simplify right side
   8,784.06x = 47,309,019.11
5. Step 5: Solve for x
   x = 47,309,019.11/8,784.06
6. Step 6: Final answer
   x = 5,385.78