Finding the Fourth Proportional to 31,111.72, 46,682.59 and 15,308.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,111.72 : 46,682.59 = 15,308.18 : x
2. Step 2: Convert to fraction form
   31,111.72/46,682.59 = 15,308.18/x
3. Step 3: Cross multiply
   31,111.72x = 46,682.59 × 15,308.18
4. Step 4: Simplify right side
   31,111.72x = 714,625,257.17
5. Step 5: Solve for x
   x = 714,625,257.17/31,111.72
6. Step 6: Final answer
   x = 22,969.65