Finding the Fourth Proportional to 37,820.77, 56,736.35 and 12,854.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,820.77 : 56,736.35 = 12,854.12 : x
2. Step 2: Convert to fraction form
   37,820.77/56,736.35 = 12,854.12/x
3. Step 3: Cross multiply
   37,820.77x = 56,736.35 × 12,854.12
4. Step 4: Simplify right side
   37,820.77x = 729,295,599.72
5. Step 5: Solve for x
   x = 729,295,599.72/37,820.77
6. Step 6: Final answer
   x = 19,282.94