Finding the Fourth Proportional to 18,111.72, 24,994.26 and 10,154.28

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111.72 : 24,994.26 = 10,154.28 : x
2. Step 2: Convert to fraction form
   18,111.72/24,994.26 = 10,154.28/x
3. Step 3: Cross multiply
   18,111.72x = 24,994.26 × 10,154.28
4. Step 4: Simplify right side
   18,111.72x = 253,798,714.43
5. Step 5: Solve for x
   x = 253,798,714.43/18,111.72
6. Step 6: Final answer
   x = 14,012.95