Finding the Fourth Proportional to 9,146.52, 13,719.74 and 2,221.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.52 : 13,719.74 = 2,221.02 : x
2. Step 2: Convert to fraction form
   9,146.52/13,719.74 = 2,221.02/x
3. Step 3: Cross multiply
   9,146.52x = 13,719.74 × 2,221.02
4. Step 4: Simplify right side
   9,146.52x = 30,471,805.83
5. Step 5: Solve for x
   x = 30,471,805.83/9,146.52
6. Step 6: Final answer
   x = 3,331.52