Finding the Fourth Proportional to 17,039,578.98, 25,540,436.34 and 12,982,692.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,039,578.98 : 25,540,436.34 = 12,982,692.15 : x
2. Step 2: Convert to fraction form
   17,039,578.98/25,540,436.34 = 12,982,692.15/x
3. Step 3: Cross multiply
   17,039,578.98x = 25,540,436.34 × 12,982,692.15
4. Step 4: Simplify right side
   17,039,578.98x = 331,583,622,378,892.75
5. Step 5: Solve for x
   x = 331,583,622,378,892.75/17,039,578.98
6. Step 6: Final answer
   x = 19,459,613.57