Finding the Fourth Proportional to 31,111.84, 46,638.96 and 10,331.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,111.84 : 46,638.96 = 10,331.68 : x
2. Step 2: Convert to fraction form
   31,111.84/46,638.96 = 10,331.68/x
3. Step 3: Cross multiply
   31,111.84x = 46,638.96 × 10,331.68
4. Step 4: Simplify right side
   31,111.84x = 481,858,810.25
5. Step 5: Solve for x
   x = 481,858,810.25/31,111.84
6. Step 6: Final answer
   x = 15,487.96