Finding the Fourth Proportional to 31,010.52, 46,531.17 and 12,290.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.52 : 46,531.17 = 12,290.15 : x
2. Step 2: Convert to fraction form
   31,010.52/46,531.17 = 12,290.15/x
3. Step 3: Cross multiply
   31,010.52x = 46,531.17 × 12,290.15
4. Step 4: Simplify right side
   31,010.52x = 571,875,175.30
5. Step 5: Solve for x
   x = 571,875,175.30/31,010.52
6. Step 6: Final answer
   x = 18,441.33