Finding the Fourth Proportional to 12,002.28, 17,995.73 and 4,987.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.28 : 17,995.73 = 4,987.14 : x
2. Step 2: Convert to fraction form
   12,002.28/17,995.73 = 4,987.14/x
3. Step 3: Cross multiply
   12,002.28x = 17,995.73 × 4,987.14
4. Step 4: Simplify right side
   12,002.28x = 89,747,267.46
5. Step 5: Solve for x
   x = 89,747,267.46/12,002.28
6. Step 6: Final answer
   x = 7,477.52