Finding the Fourth Proportional to 12,647.47, 17,437.29 and 10,370.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,647.47 : 17,437.29 = 10,370.42 : x
2. Step 2: Convert to fraction form
   12,647.47/17,437.29 = 10,370.42/x
3. Step 3: Cross multiply
   12,647.47x = 17,437.29 × 10,370.42
4. Step 4: Simplify right side
   12,647.47x = 180,832,049.31
5. Step 5: Solve for x
   x = 180,832,049.31/12,647.47
6. Step 6: Final answer
   x = 14,297.88