Finding the Fourth Proportional to 12,275.42, 18,398.85 and 7,014.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,275.42 : 18,398.85 = 7,014.12 : x
2. Step 2: Convert to fraction form
   12,275.42/18,398.85 = 7,014.12/x
3. Step 3: Cross multiply
   12,275.42x = 18,398.85 × 7,014.12
4. Step 4: Simplify right side
   12,275.42x = 129,051,741.76
5. Step 5: Solve for x
   x = 129,051,741.76/12,275.42
6. Step 6: Final answer
   x = 10,513.02