Finding the Fourth Proportional to 37,942.64, 56,920.64 and 12,976.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,942.64 : 56,920.64 = 12,976.82 : x
2. Step 2: Convert to fraction form
   37,942.64/56,920.64 = 12,976.82/x
3. Step 3: Cross multiply
   37,942.64x = 56,920.64 × 12,976.82
4. Step 4: Simplify right side
   37,942.64x = 738,648,899.56
5. Step 5: Solve for x
   x = 738,648,899.56/37,942.64
6. Step 6: Final answer
   x = 19,467.51