Finding the Fourth Proportional to 10,422.88, 15,636.28 and 3,402.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.88 : 15,636.28 = 3,402.28 : x
2. Step 2: Convert to fraction form
   10,422.88/15,636.28 = 3,402.28/x
3. Step 3: Cross multiply
   10,422.88x = 15,636.28 × 3,402.28
4. Step 4: Simplify right side
   10,422.88x = 53,199,002.72
5. Step 5: Solve for x
   x = 53,199,002.72/10,422.88
6. Step 6: Final answer
   x = 5,104.06