Finding the Fourth Proportional to 47,978.91, 71,976.56 and 16,387.23

Step by Step Solution

1. Step 1: Write the proportion equation
   47,978.91 : 71,976.56 = 16,387.23 : x
2. Step 2: Convert to fraction form
   47,978.91/71,976.56 = 16,387.23/x
3. Step 3: Cross multiply
   47,978.91x = 71,976.56 × 16,387.23
4. Step 4: Simplify right side
   47,978.91x = 1,179,496,443.33
5. Step 5: Solve for x
   x = 1,179,496,443.33/47,978.91
6. Step 6: Final answer
   x = 24,583.64