Finding the Fourth Proportional to 30,801.42, 42,505.47 and 17,372.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,801.42 : 42,505.47 = 17,372.70 : x
2. Step 2: Convert to fraction form
   30,801.42/42,505.47 = 17,372.70/x
3. Step 3: Cross multiply
   30,801.42x = 42,505.47 × 17,372.70
4. Step 4: Simplify right side
   30,801.42x = 738,434,778.67
5. Step 5: Solve for x
   x = 738,434,778.67/30,801.42
6. Step 6: Final answer
   x = 23,974.05