Finding the Fourth Proportional to 12,216.32, 18,320.82 and 5,196.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216.32 : 18,320.82 = 5,196.26 : x
2. Step 2: Convert to fraction form
   12,216.32/18,320.82 = 5,196.26/x
3. Step 3: Cross multiply
   12,216.32x = 18,320.82 × 5,196.26
4. Step 4: Simplify right side
   12,216.32x = 95,199,744.13
5. Step 5: Solve for x
   x = 95,199,744.13/12,216.32
6. Step 6: Final answer
   x = 7,792.83