Finding the Fourth Proportional to 30,823.34, 42,538.11 and 17,389.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,823.34 : 42,538.11 = 17,389.69 : x
2. Step 2: Convert to fraction form
   30,823.34/42,538.11 = 17,389.69/x
3. Step 3: Cross multiply
   30,823.34x = 42,538.11 × 17,389.69
4. Step 4: Simplify right side
   30,823.34x = 739,724,472.35
5. Step 5: Solve for x
   x = 739,724,472.35/30,823.34
6. Step 6: Final answer
   x = 23,998.85