Finding the Fourth Proportional to 23,556.89, 32,508.69 and 12,946.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,556.89 : 32,508.69 = 12,946.70 : x
2. Step 2: Convert to fraction form
   23,556.89/32,508.69 = 12,946.70/x
3. Step 3: Cross multiply
   23,556.89x = 32,508.69 × 12,946.70
4. Step 4: Simplify right side
   23,556.89x = 420,880,256.82
5. Step 5: Solve for x
   x = 420,880,256.82/23,556.89
6. Step 6: Final answer
   x = 17,866.55