Finding the Fourth Proportional to 30,897.58, 42,638.28 and 16,750.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,897.58 : 42,638.28 = 16,750.12 : x
2. Step 2: Convert to fraction form
   30,897.58/42,638.28 = 16,750.12/x
3. Step 3: Cross multiply
   30,897.58x = 42,638.28 × 16,750.12
4. Step 4: Simplify right side
   30,897.58x = 714,196,306.59
5. Step 5: Solve for x
   x = 714,196,306.59/30,897.58
6. Step 6: Final answer
   x = 23,114.96