Finding the Fourth Proportional to 31,111.24, 46,551.98 and 18,640.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,111.24 : 46,551.98 = 18,640.06 : x
2. Step 2: Convert to fraction form
   31,111.24/46,551.98 = 18,640.06/x
3. Step 3: Cross multiply
   31,111.24x = 46,551.98 × 18,640.06
4. Step 4: Simplify right side
   31,111.24x = 867,731,700.32
5. Step 5: Solve for x
   x = 867,731,700.32/31,111.24
6. Step 6: Final answer
   x = 27,891.26