Finding the Fourth Proportional to 8,929.76, 13,340.27 and 5,784.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,929.76 : 13,340.27 = 5,784.12 : x
2. Step 2: Convert to fraction form
   8,929.76/13,340.27 = 5,784.12/x
3. Step 3: Cross multiply
   8,929.76x = 13,340.27 × 5,784.12
4. Step 4: Simplify right side
   8,929.76x = 77,161,722.51
5. Step 5: Solve for x
   x = 77,161,722.51/8,929.76
6. Step 6: Final answer
   x = 8,640.96