Finding the Fourth Proportional to 12,414.53, 18,611.32 and 5,389.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,414.53 : 18,611.32 = 5,389.25 : x
2. Step 2: Convert to fraction form
   12,414.53/18,611.32 = 5,389.25/x
3. Step 3: Cross multiply
   12,414.53x = 18,611.32 × 5,389.25
4. Step 4: Simplify right side
   12,414.53x = 100,301,056.31
5. Step 5: Solve for x
   x = 100,301,056.31/12,414.53
6. Step 6: Final answer
   x = 8,079.33