Finding the Fourth Proportional to 8,470.82, 11,699.55 and 5,633.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,470.82 : 11,699.55 = 5,633.28 : x
2. Step 2: Convert to fraction form
   8,470.82/11,699.55 = 5,633.28/x
3. Step 3: Cross multiply
   8,470.82x = 11,699.55 × 5,633.28
4. Step 4: Simplify right side
   8,470.82x = 65,906,812.86
5. Step 5: Solve for x
   x = 65,906,812.86/8,470.82
6. Step 6: Final answer
   x = 7,780.45