Finding the Fourth Proportional to 8,964.81, 12,369.54 and 5,427.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.81 : 12,369.54 = 5,427.34 : x
2. Step 2: Convert to fraction form
   8,964.81/12,369.54 = 5,427.34/x
3. Step 3: Cross multiply
   8,964.81x = 12,369.54 × 5,427.34
4. Step 4: Simplify right side
   8,964.81x = 67,133,688.65
5. Step 5: Solve for x
   x = 67,133,688.65/8,964.81
6. Step 6: Final answer
   x = 7,488.58