Finding the Fourth Proportional to 19,127.52, 28,692.72 and 5,087.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,127.52 : 28,692.72 = 5,087.88 : x
2. Step 2: Convert to fraction form
   19,127.52/28,692.72 = 5,087.88/x
3. Step 3: Cross multiply
   19,127.52x = 28,692.72 × 5,087.88
4. Step 4: Simplify right side
   19,127.52x = 145,985,116.23
5. Step 5: Solve for x
   x = 145,985,116.23/19,127.52
6. Step 6: Final answer
   x = 7,632.20