Finding the Fourth Proportional to 42,724.82, 58,876.99 and 30,765.57

Step by Step Solution

1. Step 1: Write the proportion equation
   42,724.82 : 58,876.99 = 30,765.57 : x
2. Step 2: Convert to fraction form
   42,724.82/58,876.99 = 30,765.57/x
3. Step 3: Cross multiply
   42,724.82x = 58,876.99 × 30,765.57
4. Step 4: Simplify right side
   42,724.82x = 1,811,384,157.23
5. Step 5: Solve for x
   x = 1,811,384,157.23/42,724.82
6. Step 6: Final answer
   x = 42,396.53