Finding the Fourth Proportional to 30,527.47, 42,128.02 and 17,789.39

Step by Step Solution

1. Step 1: Write the proportion equation
   30,527.47 : 42,128.02 = 17,789.39 : x
2. Step 2: Convert to fraction form
   30,527.47/42,128.02 = 17,789.39/x
3. Step 3: Cross multiply
   30,527.47x = 42,128.02 × 17,789.39
4. Step 4: Simplify right side
   30,527.47x = 749,431,647.22
5. Step 5: Solve for x
   x = 749,431,647.22/30,527.47
6. Step 6: Final answer
   x = 24,549.42