Finding the Fourth Proportional to 19,315.98, 28,978.48 and 5,988.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,315.98 : 28,978.48 = 5,988.27 : x
2. Step 2: Convert to fraction form
   19,315.98/28,978.48 = 5,988.27/x
3. Step 3: Cross multiply
   19,315.98x = 28,978.48 × 5,988.27
4. Step 4: Simplify right side
   19,315.98x = 173,530,962.43
5. Step 5: Solve for x
   x = 173,530,962.43/19,315.98
6. Step 6: Final answer
   x = 8,983.80