Finding the Fourth Proportional to 9,333.42, 12,879.45 and 5,354.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,333.42 : 12,879.45 = 5,354.43 : x
2. Step 2: Convert to fraction form
   9,333.42/12,879.45 = 5,354.43/x
3. Step 3: Cross multiply
   9,333.42x = 12,879.45 × 5,354.43
4. Step 4: Simplify right side
   9,333.42x = 68,962,113.46
5. Step 5: Solve for x
   x = 68,962,113.46/9,333.42
6. Step 6: Final answer
   x = 7,388.73