Finding the Fourth Proportional to 18,500.42, 25,530.45 and 10,116.94

Step by Step Solution

1. Step 1: Write the proportion equation
   18,500.42 : 25,530.45 = 10,116.94 : x
2. Step 2: Convert to fraction form
   18,500.42/25,530.45 = 10,116.94/x
3. Step 3: Cross multiply
   18,500.42x = 25,530.45 × 10,116.94
4. Step 4: Simplify right side
   18,500.42x = 258,290,030.82
5. Step 5: Solve for x
   x = 258,290,030.82/18,500.42
6. Step 6: Final answer
   x = 13,961.31