Finding the Fourth Proportional to 12,215.31, 18,323.01 and 5,194.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,215.31 : 18,323.01 = 5,194.32 : x
2. Step 2: Convert to fraction form
   12,215.31/18,323.01 = 5,194.32/x
3. Step 3: Cross multiply
   12,215.31x = 18,323.01 × 5,194.32
4. Step 4: Simplify right side
   12,215.31x = 95,175,577.30
5. Step 5: Solve for x
   x = 95,175,577.30/12,215.31
6. Step 6: Final answer
   x = 7,791.50