Finding the Fourth Proportional to 5,287.30, 7,296.72 and 2,929.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,287.30 : 7,296.72 = 2,929.45 : x
2. Step 2: Convert to fraction form
   5,287.30/7,296.72 = 2,929.45/x
3. Step 3: Cross multiply
   5,287.30x = 7,296.72 × 2,929.45
4. Step 4: Simplify right side
   5,287.30x = 21,375,376.40
5. Step 5: Solve for x
   x = 21,375,376.40/5,287.30
6. Step 6: Final answer
   x = 4,042.78