Finding the Fourth Proportional to 9,340.56, 12,889.53 and 5,362.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.56 : 12,889.53 = 5,362.65 : x
2. Step 2: Convert to fraction form
   9,340.56/12,889.53 = 5,362.65/x
3. Step 3: Cross multiply
   9,340.56x = 12,889.53 × 5,362.65
4. Step 4: Simplify right side
   9,340.56x = 69,122,038.05
5. Step 5: Solve for x
   x = 69,122,038.05/9,340.56
6. Step 6: Final answer
   x = 7,400.20