Finding the Fourth Proportional to 23,005.57, 31,748.81 and 12,937.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,005.57 : 31,748.81 = 12,937.18 : x
2. Step 2: Convert to fraction form
   23,005.57/31,748.81 = 12,937.18/x
3. Step 3: Cross multiply
   23,005.57x = 31,748.81 × 12,937.18
4. Step 4: Simplify right side
   23,005.57x = 410,740,069.76
5. Step 5: Solve for x
   x = 410,740,069.76/23,005.57
6. Step 6: Final answer
   x = 17,853.94