Finding the Fourth Proportional to 21,847.96, 30,152.74 and 12,417.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,847.96 : 30,152.74 = 12,417.94 : x
2. Step 2: Convert to fraction form
   21,847.96/30,152.74 = 12,417.94/x
3. Step 3: Cross multiply
   21,847.96x = 30,152.74 × 12,417.94
4. Step 4: Simplify right side
   21,847.96x = 374,434,734.35
5. Step 5: Solve for x
   x = 374,434,734.35/21,847.96
6. Step 6: Final answer
   x = 17,138.21