Finding the Fourth Proportional to 9,362.93, 12,921.39 and 5,384.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,362.93 : 12,921.39 = 5,384.48 : x
2. Step 2: Convert to fraction form
   9,362.93/12,921.39 = 5,384.48/x
3. Step 3: Cross multiply
   9,362.93x = 12,921.39 × 5,384.48
4. Step 4: Simplify right side
   9,362.93x = 69,574,901.42
5. Step 5: Solve for x
   x = 69,574,901.42/9,362.93
6. Step 6: Final answer
   x = 7,430.89