Finding the Fourth Proportional to 10,856.04, 16,282.23 and 4,931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.04 : 16,282.23 = 4,931.10 : x
2. Step 2: Convert to fraction form
   10,856.04/16,282.23 = 4,931.10/x
3. Step 3: Cross multiply
   10,856.04x = 16,282.23 × 4,931.10
4. Step 4: Simplify right side
   10,856.04x = 80,289,304.35
5. Step 5: Solve for x
   x = 80,289,304.35/10,856.04
6. Step 6: Final answer
   x = 7,395.82