Finding the Fourth Proportional to 56,022, 77,311.17 and 30,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,022 : 77,311.17 = 30,871.50 : x
2. Step 2: Convert to fraction form
   56,022/77,311.17 = 30,871.50/x
3. Step 3: Cross multiply
   56,022x = 77,311.17 × 30,871.50
4. Step 4: Simplify right side
   56,022x = 2,386,711,784.66
5. Step 5: Solve for x
   x = 2,386,711,784.66/56,022
6. Step 6: Final answer
   x = 42,603.12