Finding the Fourth Proportional to 23,636.78, 32,618.39 and 13,026.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,636.78 : 32,618.39 = 13,026.80 : x
2. Step 2: Convert to fraction form
   23,636.78/32,618.39 = 13,026.80/x
3. Step 3: Cross multiply
   23,636.78x = 32,618.39 × 13,026.80
4. Step 4: Simplify right side
   23,636.78x = 424,913,014.63
5. Step 5: Solve for x
   x = 424,913,014.63/23,636.78
6. Step 6: Final answer
   x = 17,976.78