Finding the Fourth Proportional to 14,109.55, 21,152.77 and 7,081.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,109.55 : 21,152.77 = 7,081.09 : x
2. Step 2: Convert to fraction form
   14,109.55/21,152.77 = 7,081.09/x
3. Step 3: Cross multiply
   14,109.55x = 21,152.77 × 7,081.09
4. Step 4: Simplify right side
   14,109.55x = 149,784,668.12
5. Step 5: Solve for x
   x = 149,784,668.12/14,109.55
6. Step 6: Final answer
   x = 10,615.84