Finding the Fourth Proportional to 56,940.81, 78,578.32 and 33,069.02

Step by Step Solution

1. Step 1: Write the proportion equation
   56,940.81 : 78,578.32 = 33,069.02 : x
2. Step 2: Convert to fraction form
   56,940.81/78,578.32 = 33,069.02/x
3. Step 3: Cross multiply
   56,940.81x = 78,578.32 × 33,069.02
4. Step 4: Simplify right side
   56,940.81x = 2,598,508,273.43
5. Step 5: Solve for x
   x = 2,598,508,273.43/56,940.81
6. Step 6: Final answer
   x = 45,635.25