Finding the Fourth Proportional to 22,171.58, 30,569.55 and 13,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,171.58 : 30,569.55 = 13,773.50 : x
2. Step 2: Convert to fraction form
   22,171.58/30,569.55 = 13,773.50/x
3. Step 3: Cross multiply
   22,171.58x = 30,569.55 × 13,773.50
4. Step 4: Simplify right side
   22,171.58x = 421,049,544.08
5. Step 5: Solve for x
   x = 421,049,544.08/22,171.58
6. Step 6: Final answer
   x = 18,990.51