Finding the Fourth Proportional to 11,818.83, 17,730.35 and 3,921.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,818.83 : 17,730.35 = 3,921.82 : x
2. Step 2: Convert to fraction form
   11,818.83/17,730.35 = 3,921.82/x
3. Step 3: Cross multiply
   11,818.83x = 17,730.35 × 3,921.82
4. Step 4: Simplify right side
   11,818.83x = 69,535,313.80
5. Step 5: Solve for x
   x = 69,535,313.80/11,818.83
6. Step 6: Final answer
   x = 5,883.43