Finding the Fourth Proportional to 10,820.34, 16,231.50 and 3,422.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.34 : 16,231.50 = 3,422.88 : x
2. Step 2: Convert to fraction form
   10,820.34/16,231.50 = 3,422.88/x
3. Step 3: Cross multiply
   10,820.34x = 16,231.50 × 3,422.88
4. Step 4: Simplify right side
   10,820.34x = 55,558,476.72
5. Step 5: Solve for x
   x = 55,558,476.72/10,820.34
6. Step 6: Final answer
   x = 5,134.63