Finding the Fourth Proportional to 42,278.82, 58,344.78 and 23,158.68

Step by Step Solution

1. Step 1: Write the proportion equation
   42,278.82 : 58,344.78 = 23,158.68 : x
2. Step 2: Convert to fraction form
   42,278.82/58,344.78 = 23,158.68/x
3. Step 3: Cross multiply
   42,278.82x = 58,344.78 × 23,158.68
4. Step 4: Simplify right side
   42,278.82x = 1,351,188,089.69
5. Step 5: Solve for x
   x = 1,351,188,089.69/42,278.82
6. Step 6: Final answer
   x = 31,958.98