Finding the Fourth Proportional to 31,375.74, 43,298.60 and 17,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,375.74 : 43,298.60 = 17,229.50 : x
2. Step 2: Convert to fraction form
   31,375.74/43,298.60 = 17,229.50/x
3. Step 3: Cross multiply
   31,375.74x = 43,298.60 × 17,229.50
4. Step 4: Simplify right side
   31,375.74x = 746,012,926.06
5. Step 5: Solve for x
   x = 746,012,926.06/31,375.74
6. Step 6: Final answer
   x = 23,776.74