Finding the Fourth Proportional to 8,669.46, 11,969.00 and 5,690.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,669.46 : 11,969.00 = 5,690.51 : x
2. Step 2: Convert to fraction form
   8,669.46/11,969.00 = 5,690.51/x
3. Step 3: Cross multiply
   8,669.46x = 11,969.00 × 5,690.51
4. Step 4: Simplify right side
   8,669.46x = 68,109,625.89
5. Step 5: Solve for x
   x = 68,109,625.89/8,669.46
6. Step 6: Final answer
   x = 7,856.27