Finding the Fourth Proportional to 8,964.53, 12,367.59 and 5,777.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.53 : 12,367.59 = 5,777.58 : x
2. Step 2: Convert to fraction form
   8,964.53/12,367.59 = 5,777.58/x
3. Step 3: Cross multiply
   8,964.53x = 12,367.59 × 5,777.58
4. Step 4: Simplify right side
   8,964.53x = 71,454,740.63
5. Step 5: Solve for x
   x = 71,454,740.63/8,964.53
6. Step 6: Final answer
   x = 7,970.83