Finding the Fourth Proportional to 56,022.53, 77,313.98 and 30,872.03

Step by Step Solution

1. Step 1: Write the proportion equation
   56,022.53 : 77,313.98 = 30,872.03 : x
2. Step 2: Convert to fraction form
   56,022.53/77,313.98 = 30,872.03/x
3. Step 3: Cross multiply
   56,022.53x = 77,313.98 × 30,872.03
4. Step 4: Simplify right side
   56,022.53x = 2,386,839,355.62
5. Step 5: Solve for x
   x = 2,386,839,355.62/56,022.53
6. Step 6: Final answer
   x = 42,604.99