Finding the Fourth Proportional to 31,167.60, 46,723.59 and 13,623.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,167.60 : 46,723.59 = 13,623.54 : x
2. Step 2: Convert to fraction form
   31,167.60/46,723.59 = 13,623.54/x
3. Step 3: Cross multiply
   31,167.60x = 46,723.59 × 13,623.54
4. Step 4: Simplify right side
   31,167.60x = 636,540,697.31
5. Step 5: Solve for x
   x = 636,540,697.31/31,167.60
6. Step 6: Final answer
   x = 20,423.15