Finding the Fourth Proportional to 22,774.96, 31,429.50 and 12,704.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,774.96 : 31,429.50 = 12,704.05 : x
2. Step 2: Convert to fraction form
   22,774.96/31,429.50 = 12,704.05/x
3. Step 3: Cross multiply
   22,774.96x = 31,429.50 × 12,704.05
4. Step 4: Simplify right side
   22,774.96x = 399,281,939.48
5. Step 5: Solve for x
   x = 399,281,939.48/22,774.96
6. Step 6: Final answer
   x = 17,531.62