Finding the Fourth Proportional to 3,443.34, 5,167.61 and 2,521.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.34 : 5,167.61 = 2,521.28 : x
2. Step 2: Convert to fraction form
   3,443.34/5,167.61 = 2,521.28/x
3. Step 3: Cross multiply
   3,443.34x = 5,167.61 × 2,521.28
4. Step 4: Simplify right side
   3,443.34x = 13,028,953.30
5. Step 5: Solve for x
   x = 13,028,953.30/3,443.34
6. Step 6: Final answer
   x = 3,783.81