Finding the Fourth Proportional to 19,684.50, 27,164.61 and 12,612.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,684.50 : 27,164.61 = 12,612.29 : x
2. Step 2: Convert to fraction form
   19,684.50/27,164.61 = 12,612.29/x
3. Step 3: Cross multiply
   19,684.50x = 27,164.61 × 12,612.29
4. Step 4: Simplify right side
   19,684.50x = 342,607,803.23
5. Step 5: Solve for x
   x = 342,607,803.23/19,684.50
6. Step 6: Final answer
   x = 17,404.95