Finding the Fourth Proportional to 42,319.78, 58,403.31 and 23,456.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,319.78 : 58,403.31 = 23,456.92 : x
2. Step 2: Convert to fraction form
   42,319.78/58,403.31 = 23,456.92/x
3. Step 3: Cross multiply
   42,319.78x = 58,403.31 × 23,456.92
4. Step 4: Simplify right side
   42,319.78x = 1,369,961,770.41
5. Step 5: Solve for x
   x = 1,369,961,770.41/42,319.78
6. Step 6: Final answer
   x = 32,371.67