Finding the Fourth Proportional to 30,526.75, 42,128.27 and 17,097.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,526.75 : 42,128.27 = 17,097.72 : x
2. Step 2: Convert to fraction form
   30,526.75/42,128.27 = 17,097.72/x
3. Step 3: Cross multiply
   30,526.75x = 42,128.27 × 17,097.72
4. Step 4: Simplify right side
   30,526.75x = 720,297,364.54
5. Step 5: Solve for x
   x = 720,297,364.54/30,526.75
6. Step 6: Final answer
   x = 23,595.61