Finding the Fourth Proportional to 31,010.68, 46,514.98 and 13,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.68 : 46,514.98 = 13,480.50 : x
2. Step 2: Convert to fraction form
   31,010.68/46,514.98 = 13,480.50/x
3. Step 3: Cross multiply
   31,010.68x = 46,514.98 × 13,480.50
4. Step 4: Simplify right side
   31,010.68x = 627,045,187.89
5. Step 5: Solve for x
   x = 627,045,187.89/31,010.68
6. Step 6: Final answer
   x = 20,220.30