Finding the Fourth Proportional to 10,343.52, 15,514.20 and 2,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.52 : 15,514.20 = 2,947.50 : x
2. Step 2: Convert to fraction form
   10,343.52/15,514.20 = 2,947.50/x
3. Step 3: Cross multiply
   10,343.52x = 15,514.20 × 2,947.50
4. Step 4: Simplify right side
   10,343.52x = 45,728,104.50
5. Step 5: Solve for x
   x = 45,728,104.50/10,343.52
6. Step 6: Final answer
   x = 4,420.94