Finding the Fourth Proportional to 9,368.04, 12,930.06 and 5,391.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,368.04 : 12,930.06 = 5,391.42 : x
2. Step 2: Convert to fraction form
   9,368.04/12,930.06 = 5,391.42/x
3. Step 3: Cross multiply
   9,368.04x = 12,930.06 × 5,391.42
4. Step 4: Simplify right side
   9,368.04x = 69,711,384.09
5. Step 5: Solve for x
   x = 69,711,384.09/9,368.04
6. Step 6: Final answer
   x = 7,441.41