Finding the Fourth Proportional to 30,693.79, 42,355.74 and 17,265.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,693.79 : 42,355.74 = 17,265.61 : x
2. Step 2: Convert to fraction form
   30,693.79/42,355.74 = 17,265.61/x
3. Step 3: Cross multiply
   30,693.79x = 42,355.74 × 17,265.61
4. Step 4: Simplify right side
   30,693.79x = 731,297,688.10
5. Step 5: Solve for x
   x = 731,297,688.10/30,693.79
6. Step 6: Final answer
   x = 23,825.59