Finding the Fourth Proportional to 16,061.56, 22,143.72 and 13,179.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.56 : 22,143.72 = 13,179.73 : x
2. Step 2: Convert to fraction form
   16,061.56/22,143.72 = 13,179.73/x
3. Step 3: Cross multiply
   16,061.56x = 22,143.72 × 13,179.73
4. Step 4: Simplify right side
   16,061.56x = 291,848,255.99
5. Step 5: Solve for x
   x = 291,848,255.99/16,061.56
6. Step 6: Final answer
   x = 18,170.60