Finding the Fourth Proportional to 22,157.72, 30,577.72 and 12,086.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,157.72 : 30,577.72 = 12,086.22 : x
2. Step 2: Convert to fraction form
   22,157.72/30,577.72 = 12,086.22/x
3. Step 3: Cross multiply
   22,157.72x = 30,577.72 × 12,086.22
4. Step 4: Simplify right side
   22,157.72x = 369,569,051.02
5. Step 5: Solve for x
   x = 369,569,051.02/22,157.72
6. Step 6: Final answer
   x = 16,679.02