Finding the Fourth Proportional to 56,022.77, 77,311.04 and 30,872.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,022.77 : 77,311.04 = 30,872.27 : x
2. Step 2: Convert to fraction form
   56,022.77/77,311.04 = 30,872.27/x
3. Step 3: Cross multiply
   56,022.77x = 77,311.04 × 30,872.27
4. Step 4: Simplify right side
   56,022.77x = 2,386,766,759.94
5. Step 5: Solve for x
   x = 2,386,766,759.94/56,022.77
6. Step 6: Final answer
   x = 42,603.52