Finding the Fourth Proportional to 16,796.89, 25,194.43 and 5,109.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,796.89 : 25,194.43 = 5,109.20 : x
2. Step 2: Convert to fraction form
   16,796.89/25,194.43 = 5,109.20/x
3. Step 3: Cross multiply
   16,796.89x = 25,194.43 × 5,109.20
4. Step 4: Simplify right side
   16,796.89x = 128,723,381.76
5. Step 5: Solve for x
   x = 128,723,381.76/16,796.89
6. Step 6: Final answer
   x = 7,663.52