Finding the Fourth Proportional to 12,312.12, 18,452.10 and 10,748.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,312.12 : 18,452.10 = 10,748.10 : x
2. Step 2: Convert to fraction form
   12,312.12/18,452.10 = 10,748.10/x
3. Step 3: Cross multiply
   12,312.12x = 18,452.10 × 10,748.10
4. Step 4: Simplify right side
   12,312.12x = 198,325,016.01
5. Step 5: Solve for x
   x = 198,325,016.01/12,312.12
6. Step 6: Final answer
   x = 16,108.11