Finding the Fourth Proportional to 40,384.50, 60,586.56 and 12,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,384.50 : 60,586.56 = 12,682.50 : x
2. Step 2: Convert to fraction form
   40,384.50/60,586.56 = 12,682.50/x
3. Step 3: Cross multiply
   40,384.50x = 60,586.56 × 12,682.50
4. Step 4: Simplify right side
   40,384.50x = 768,389,047.20
5. Step 5: Solve for x
   x = 768,389,047.20/40,384.50
6. Step 6: Final answer
   x = 19,026.83