Finding the Fourth Proportional to 21,702.08, 29,949.72 and 12,749.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,702.08 : 29,949.72 = 12,749.51 : x
2. Step 2: Convert to fraction form
   21,702.08/29,949.72 = 12,749.51/x
3. Step 3: Cross multiply
   21,702.08x = 29,949.72 × 12,749.51
4. Step 4: Simplify right side
   21,702.08x = 381,844,104.89
5. Step 5: Solve for x
   x = 381,844,104.89/21,702.08
6. Step 6: Final answer
   x = 17,594.82