Finding the Fourth Proportional to 12,196.77, 18,294.73 and 5,172.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.77 : 18,294.73 = 5,172.26 : x
2. Step 2: Convert to fraction form
   12,196.77/18,294.73 = 5,172.26/x
3. Step 3: Cross multiply
   12,196.77x = 18,294.73 × 5,172.26
4. Step 4: Simplify right side
   12,196.77x = 94,625,100.19
5. Step 5: Solve for x
   x = 94,625,100.19/12,196.77
6. Step 6: Final answer
   x = 7,758.21