Finding the Fourth Proportional to 23,085.57, 31,853.55 and 13,654.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.57 : 31,853.55 = 13,654.74 : x
2. Step 2: Convert to fraction form
   23,085.57/31,853.55 = 13,654.74/x
3. Step 3: Cross multiply
   23,085.57x = 31,853.55 × 13,654.74
4. Step 4: Simplify right side
   23,085.57x = 434,951,943.33
5. Step 5: Solve for x
   x = 434,951,943.33/23,085.57
6. Step 6: Final answer
   x = 18,840.86