Finding the Fourth Proportional to 10,856.25, 16,279.18 and 5,303.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.25 : 16,279.18 = 5,303.10 : x
2. Step 2: Convert to fraction form
   10,856.25/16,279.18 = 5,303.10/x
3. Step 3: Cross multiply
   10,856.25x = 16,279.18 × 5,303.10
4. Step 4: Simplify right side
   10,856.25x = 86,330,029.89
5. Step 5: Solve for x
   x = 86,330,029.89/10,856.25
6. Step 6: Final answer
   x = 7,952.10