Finding the Fourth Proportional to 9,212.52, 12,709.67 and 5,669.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,212.52 : 12,709.67 = 5,669.58 : x
2. Step 2: Convert to fraction form
   9,212.52/12,709.67 = 5,669.58/x
3. Step 3: Cross multiply
   9,212.52x = 12,709.67 × 5,669.58
4. Step 4: Simplify right side
   9,212.52x = 72,058,490.84
5. Step 5: Solve for x
   x = 72,058,490.84/9,212.52
6. Step 6: Final answer
   x = 7,821.80