Finding the Fourth Proportional to 12,901.98, 19,323.72 and 10,569.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.98 : 19,323.72 = 10,569.18 : x
2. Step 2: Convert to fraction form
   12,901.98/19,323.72 = 10,569.18/x
3. Step 3: Cross multiply
   12,901.98x = 19,323.72 × 10,569.18
4. Step 4: Simplify right side
   12,901.98x = 204,235,874.95
5. Step 5: Solve for x
   x = 204,235,874.95/12,901.98
6. Step 6: Final answer
   x = 15,829.81