Finding the Fourth Proportional to 14,055.10, 21,066.42 and 5,284.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,055.10 : 21,066.42 = 5,284.42 : x
2. Step 2: Convert to fraction form
   14,055.10/21,066.42 = 5,284.42/x
3. Step 3: Cross multiply
   14,055.10x = 21,066.42 × 5,284.42
4. Step 4: Simplify right side
   14,055.10x = 111,323,811.18
5. Step 5: Solve for x
   x = 111,323,811.18/14,055.10
6. Step 6: Final answer
   x = 7,920.53