Finding the Fourth Proportional to 12,387.93, 18,569.33 and 5,364.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,387.93 : 18,569.33 = 5,364.82 : x
2. Step 2: Convert to fraction form
   12,387.93/18,569.33 = 5,364.82/x
3. Step 3: Cross multiply
   12,387.93x = 18,569.33 × 5,364.82
4. Step 4: Simplify right side
   12,387.93x = 99,621,112.97
5. Step 5: Solve for x
   x = 99,621,112.97/12,387.93
6. Step 6: Final answer
   x = 8,041.79