Finding the Fourth Proportional to 12,675.74, 17,490.98 and 7,009.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,675.74 : 17,490.98 = 7,009.72 : x
2. Step 2: Convert to fraction form
   12,675.74/17,490.98 = 7,009.72/x
3. Step 3: Cross multiply
   12,675.74x = 17,490.98 × 7,009.72
4. Step 4: Simplify right side
   12,675.74x = 122,606,846.12
5. Step 5: Solve for x
   x = 122,606,846.12/12,675.74
6. Step 6: Final answer
   x = 9,672.56