Finding the Fourth Proportional to 56,939.30, 78,570.27 and 33,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,939.30 : 78,570.27 = 33,061.31 : x
2. Step 2: Convert to fraction form
   56,939.30/78,570.27 = 33,061.31/x
3. Step 3: Cross multiply
   56,939.30x = 78,570.27 × 33,061.31
4. Step 4: Simplify right side
   56,939.30x = 2,597,636,053.25
5. Step 5: Solve for x
   x = 2,597,636,053.25/56,939.30
6. Step 6: Final answer
   x = 45,621.14