Finding the Fourth Proportional to 30,897.06, 42,638.10 and 17,469.60

Step by Step Solution

1. Step 1: Write the proportion equation
   30,897.06 : 42,638.10 = 17,469.60 : x
2. Step 2: Convert to fraction form
   30,897.06/42,638.10 = 17,469.60/x
3. Step 3: Cross multiply
   30,897.06x = 42,638.10 × 17,469.60
4. Step 4: Simplify right side
   30,897.06x = 744,870,551.76
5. Step 5: Solve for x
   x = 744,870,551.76/30,897.06
6. Step 6: Final answer
   x = 24,108.14