Finding the Fourth Proportional to 14,300.06, 21,452.78 and 5,418.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.06 : 21,452.78 = 5,418.05 : x
2. Step 2: Convert to fraction form
   14,300.06/21,452.78 = 5,418.05/x
3. Step 3: Cross multiply
   14,300.06x = 21,452.78 × 5,418.05
4. Step 4: Simplify right side
   14,300.06x = 116,232,140.96
5. Step 5: Solve for x
   x = 116,232,140.96/14,300.06
6. Step 6: Final answer
   x = 8,128.09