Finding the Fourth Proportional to 12,694.72, 19,041.36 and 3,460

Step by Step Solution

1. Step 1: Write the proportion equation
   12,694.72 : 19,041.36 = 3,460 : x
2. Step 2: Convert to fraction form
   12,694.72/19,041.36 = 3,460/x
3. Step 3: Cross multiply
   12,694.72x = 19,041.36 × 3,460
4. Step 4: Simplify right side
   12,694.72x = 65,883,105.60
5. Step 5: Solve for x
   x = 65,883,105.60/12,694.72
6. Step 6: Final answer
   x = 5,189.80