Finding the Fourth Proportional to 30,527.52, 42,128.72 and 17,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,527.52 : 42,128.72 = 17,101.50 : x
2. Step 2: Convert to fraction form
   30,527.52/42,128.72 = 17,101.50/x
3. Step 3: Cross multiply
   30,527.52x = 42,128.72 × 17,101.50
4. Step 4: Simplify right side
   30,527.52x = 720,464,305.08
5. Step 5: Solve for x
   x = 720,464,305.08/30,527.52
6. Step 6: Final answer
   x = 23,600.49