Finding the Fourth Proportional to 10,627.24, 15,926.28 and 5,422.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,627.24 : 15,926.28 = 5,422.18 : x
2. Step 2: Convert to fraction form
   10,627.24/15,926.28 = 5,422.18/x
3. Step 3: Cross multiply
   10,627.24x = 15,926.28 × 5,422.18
4. Step 4: Simplify right side
   10,627.24x = 86,355,156.89
5. Step 5: Solve for x
   x = 86,355,156.89/10,627.24
6. Step 6: Final answer
   x = 8,125.83