Finding the Fourth Proportional to 10,256.28, 14,156.46 and 7,272.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256.28 : 14,156.46 = 7,272.60 : x
2. Step 2: Convert to fraction form
   10,256.28/14,156.46 = 7,272.60/x
3. Step 3: Cross multiply
   10,256.28x = 14,156.46 × 7,272.60
4. Step 4: Simplify right side
   10,256.28x = 102,954,271.00
5. Step 5: Solve for x
   x = 102,954,271.00/10,256.28
6. Step 6: Final answer
   x = 10,038.17