Finding the Fourth Proportional to 12,025, 16,570.38 and 11,978.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,025 : 16,570.38 = 11,978.92 : x
2. Step 2: Convert to fraction form
   12,025/16,570.38 = 11,978.92/x
3. Step 3: Cross multiply
   12,025x = 16,570.38 × 11,978.92
4. Step 4: Simplify right side
   12,025x = 198,495,256.39
5. Step 5: Solve for x
   x = 198,495,256.39/12,025
6. Step 6: Final answer
   x = 16,506.88