Finding the Fourth Proportional to 11,111.01, 16,665.30 and 3,318

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.01 : 16,665.30 = 3,318 : x
2. Step 2: Convert to fraction form
   11,111.01/16,665.30 = 3,318/x
3. Step 3: Cross multiply
   11,111.01x = 16,665.30 × 3,318
4. Step 4: Simplify right side
   11,111.01x = 55,295,465.40
5. Step 5: Solve for x
   x = 55,295,465.40/11,111.01
6. Step 6: Final answer
   x = 4,976.64