Finding the Fourth Proportional to 56,057.77, 77,359.34 and 30,907.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,057.77 : 77,359.34 = 30,907.27 : x
2. Step 2: Convert to fraction form
   56,057.77/77,359.34 = 30,907.27/x
3. Step 3: Cross multiply
   56,057.77x = 77,359.34 × 30,907.27
4. Step 4: Simplify right side
   56,057.77x = 2,390,965,467.07
5. Step 5: Solve for x
   x = 2,390,965,467.07/56,057.77
6. Step 6: Final answer
   x = 42,651.82