Finding the Fourth Proportional to 13,086.92, 19,633.34 and 4,322.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.92 : 19,633.34 = 4,322.76 : x
2. Step 2: Convert to fraction form
   13,086.92/19,633.34 = 4,322.76/x
3. Step 3: Cross multiply
   13,086.92x = 19,633.34 × 4,322.76
4. Step 4: Simplify right side
   13,086.92x = 84,870,216.82
5. Step 5: Solve for x
   x = 84,870,216.82/13,086.92
6. Step 6: Final answer
   x = 6,485.12