Finding the Fourth Proportional to 17,647.98, 26,431.32 and 10,612.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,647.98 : 26,431.32 = 10,612.56 : x
2. Step 2: Convert to fraction form
   17,647.98/26,431.32 = 10,612.56/x
3. Step 3: Cross multiply
   17,647.98x = 26,431.32 × 10,612.56
4. Step 4: Simplify right side
   17,647.98x = 280,503,969.38
5. Step 5: Solve for x
   x = 280,503,969.38/17,647.98
6. Step 6: Final answer
   x = 15,894.40