Finding the Fourth Proportional to 10,509.91, 15,764.83 and 3,490.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,509.91 : 15,764.83 = 3,490.46 : x
2. Step 2: Convert to fraction form
   10,509.91/15,764.83 = 3,490.46/x
3. Step 3: Cross multiply
   10,509.91x = 15,764.83 × 3,490.46
4. Step 4: Simplify right side
   10,509.91x = 55,026,508.52
5. Step 5: Solve for x
   x = 55,026,508.52/10,509.91
6. Step 6: Final answer
   x = 5,235.68