Finding the Fourth Proportional to 31,021.50, 46,524.06 and 13,487.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,021.50 : 46,524.06 = 13,487.34 : x
2. Step 2: Convert to fraction form
   31,021.50/46,524.06 = 13,487.34/x
3. Step 3: Cross multiply
   31,021.50x = 46,524.06 × 13,487.34
4. Step 4: Simplify right side
   31,021.50x = 627,485,815.40
5. Step 5: Solve for x
   x = 627,485,815.40/31,021.50
6. Step 6: Final answer
   x = 20,227.45