Finding the Fourth Proportional to 14,423.22, 21,643.47 and 5,189.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,423.22 : 21,643.47 = 5,189.94 : x
2. Step 2: Convert to fraction form
   14,423.22/21,643.47 = 5,189.94/x
3. Step 3: Cross multiply
   14,423.22x = 21,643.47 × 5,189.94
4. Step 4: Simplify right side
   14,423.22x = 112,328,310.69
5. Step 5: Solve for x
   x = 112,328,310.69/14,423.22
6. Step 6: Final answer
   x = 7,788.02