Finding the Fourth Proportional to 31,081.50, 46,629.63 and 10,305

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.50 : 46,629.63 = 10,305 : x
2. Step 2: Convert to fraction form
   31,081.50/46,629.63 = 10,305/x
3. Step 3: Cross multiply
   31,081.50x = 46,629.63 × 10,305
4. Step 4: Simplify right side
   31,081.50x = 480,518,337.15
5. Step 5: Solve for x
   x = 480,518,337.15/31,081.50
6. Step 6: Final answer
   x = 15,459.95