Finding the Fourth Proportional to 30,687.53, 42,343.83 and 17,257.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,687.53 : 42,343.83 = 17,257.98 : x
2. Step 2: Convert to fraction form
   30,687.53/42,343.83 = 17,257.98/x
3. Step 3: Cross multiply
   30,687.53x = 42,343.83 × 17,257.98
4. Step 4: Simplify right side
   30,687.53x = 730,768,971.26
5. Step 5: Solve for x
   x = 730,768,971.26/30,687.53
6. Step 6: Final answer
   x = 23,813.23