Finding the Fourth Proportional to 9,043.34, 12,479.98 and 5,458.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.34 : 12,479.98 = 5,458.31 : x
2. Step 2: Convert to fraction form
   9,043.34/12,479.98 = 5,458.31/x
3. Step 3: Cross multiply
   9,043.34x = 12,479.98 × 5,458.31
4. Step 4: Simplify right side
   9,043.34x = 68,119,523.59
5. Step 5: Solve for x
   x = 68,119,523.59/9,043.34
6. Step 6: Final answer
   x = 7,532.56