Finding the Fourth Proportional to 21,766.29, 32,648.06 and 12,994.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,766.29 : 32,648.06 = 12,994.59 : x
2. Step 2: Convert to fraction form
   21,766.29/32,648.06 = 12,994.59/x
3. Step 3: Cross multiply
   21,766.29x = 32,648.06 × 12,994.59
4. Step 4: Simplify right side
   21,766.29x = 424,248,308.91
5. Step 5: Solve for x
   x = 424,248,308.91/21,766.29
6. Step 6: Final answer
   x = 19,491.07