Finding the Fourth Proportional to 37,642.86, 56,449.94 and 12,676.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,642.86 : 56,449.94 = 12,676.21 : x
2. Step 2: Convert to fraction form
   37,642.86/56,449.94 = 12,676.21/x
3. Step 3: Cross multiply
   37,642.86x = 56,449.94 × 12,676.21
4. Step 4: Simplify right side
   37,642.86x = 715,571,293.93
5. Step 5: Solve for x
   x = 715,571,293.93/37,642.86
6. Step 6: Final answer
   x = 19,009.48