Finding the Fourth Proportional to 17,090.43, 23,583.98 and 12,612.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,090.43 : 23,583.98 = 12,612.55 : x
2. Step 2: Convert to fraction form
   17,090.43/23,583.98 = 12,612.55/x
3. Step 3: Cross multiply
   17,090.43x = 23,583.98 × 12,612.55
4. Step 4: Simplify right side
   17,090.43x = 297,453,945.97
5. Step 5: Solve for x
   x = 297,453,945.97/17,090.43
6. Step 6: Final answer
   x = 17,404.71