Finding the Fourth Proportional to 56,940.72, 78,579.30 and 33,058.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,940.72 : 78,579.30 = 33,058.68 : x
2. Step 2: Convert to fraction form
   56,940.72/78,579.30 = 33,058.68/x
3. Step 3: Cross multiply
   56,940.72x = 78,579.30 × 33,058.68
4. Step 4: Simplify right side
   56,940.72x = 2,597,727,933.32
5. Step 5: Solve for x
   x = 2,597,727,933.32/56,940.72
6. Step 6: Final answer
   x = 45,621.62