Finding the Fourth Proportional to 19,673.82, 29,485.62 and 12,651.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,673.82 : 29,485.62 = 12,651.12 : x
2. Step 2: Convert to fraction form
   19,673.82/29,485.62 = 12,651.12/x
3. Step 3: Cross multiply
   19,673.82x = 29,485.62 × 12,651.12
4. Step 4: Simplify right side
   19,673.82x = 373,026,116.89
5. Step 5: Solve for x
   x = 373,026,116.89/19,673.82
6. Step 6: Final answer
   x = 18,960.53