Finding the Fourth Proportional to 17,068.22, 25,692.91 and 12,171.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,068.22 : 25,692.91 = 12,171.74 : x
2. Step 2: Convert to fraction form
   17,068.22/25,692.91 = 12,171.74/x
3. Step 3: Cross multiply
   17,068.22x = 25,692.91 × 12,171.74
4. Step 4: Simplify right side
   17,068.22x = 312,727,359.50
5. Step 5: Solve for x
   x = 312,727,359.50/17,068.22
6. Step 6: Final answer
   x = 18,322.20