Finding the Fourth Proportional to 14,402.89, 21,613.79 and 5,168.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,402.89 : 21,613.79 = 5,168.89 : x
2. Step 2: Convert to fraction form
   14,402.89/21,613.79 = 5,168.89/x
3. Step 3: Cross multiply
   14,402.89x = 21,613.79 × 5,168.89
4. Step 4: Simplify right side
   14,402.89x = 111,719,302.99
5. Step 5: Solve for x
   x = 111,719,302.99/14,402.89
6. Step 6: Final answer
   x = 7,756.73