Finding the Fourth Proportional to 12,127.98, 18,194.17 and 5,012.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,127.98 : 18,194.17 = 5,012.23 : x
2. Step 2: Convert to fraction form
   12,127.98/18,194.17 = 5,012.23/x
3. Step 3: Cross multiply
   12,127.98x = 18,194.17 × 5,012.23
4. Step 4: Simplify right side
   12,127.98x = 91,193,364.70
5. Step 5: Solve for x
   x = 91,193,364.70/12,127.98
6. Step 6: Final answer
   x = 7,519.25