Finding the Fourth Proportional to 9,362.10, 12,918.15 and 5,533.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,362.10 : 12,918.15 = 5,533.20 : x
2. Step 2: Convert to fraction form
   9,362.10/12,918.15 = 5,533.20/x
3. Step 3: Cross multiply
   9,362.10x = 12,918.15 × 5,533.20
4. Step 4: Simplify right side
   9,362.10x = 71,478,642.99
5. Step 5: Solve for x
   x = 71,478,642.99/9,362.10
6. Step 6: Final answer
   x = 7,634.90