Finding the Fourth Proportional to 40,367.25, 60,560.60 and 12,665.25

Step by Step Solution

1. Step 1: Write the proportion equation
   40,367.25 : 60,560.60 = 12,665.25 : x
2. Step 2: Convert to fraction form
   40,367.25/60,560.60 = 12,665.25/x
3. Step 3: Cross multiply
   40,367.25x = 60,560.60 × 12,665.25
4. Step 4: Simplify right side
   40,367.25x = 767,015,075.82
5. Step 5: Solve for x
   x = 767,015,075.82/40,367.25
6. Step 6: Final answer
   x = 19,000.92