Finding the Fourth Proportional to 31,085.21, 46,641.60 and 16,290.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,085.21 : 46,641.60 = 16,290.61 : x
2. Step 2: Convert to fraction form
   31,085.21/46,641.60 = 16,290.61/x
3. Step 3: Cross multiply
   31,085.21x = 46,641.60 × 16,290.61
4. Step 4: Simplify right side
   31,085.21x = 759,820,115.38
5. Step 5: Solve for x
   x = 759,820,115.38/31,085.21
6. Step 6: Final answer
   x = 24,443.14