Finding the Fourth Proportional to 56,783.82, 85,114.56 and 27,138.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,783.82 : 85,114.56 = 27,138.62 : x
2. Step 2: Convert to fraction form
   56,783.82/85,114.56 = 27,138.62/x
3. Step 3: Cross multiply
   56,783.82x = 85,114.56 × 27,138.62
4. Step 4: Simplify right side
   56,783.82x = 2,309,891,700.31
5. Step 5: Solve for x
   x = 2,309,891,700.31/56,783.82
6. Step 6: Final answer
   x = 40,678.70