Finding the Fourth Proportional to 31,111.39, 46,657.50 and 8,918.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,111.39 : 46,657.50 = 8,918.83 : x
2. Step 2: Convert to fraction form
   31,111.39/46,657.50 = 8,918.83/x
3. Step 3: Cross multiply
   31,111.39x = 46,657.50 × 8,918.83
4. Step 4: Simplify right side
   31,111.39x = 416,130,310.73
5. Step 5: Solve for x
   x = 416,130,310.73/31,111.39
6. Step 6: Final answer
   x = 13,375.50