Finding the Fourth Proportional to 21,454.12, 32,185.86 and 8,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,454.12 : 32,185.86 = 8,974.72 : x
2. Step 2: Convert to fraction form
   21,454.12/32,185.86 = 8,974.72/x
3. Step 3: Cross multiply
   21,454.12x = 32,185.86 × 8,974.72
4. Step 4: Simplify right side
   21,454.12x = 288,859,081.46
5. Step 5: Solve for x
   x = 288,859,081.46/21,454.12
6. Step 6: Final answer
   x = 13,464.04