Finding the Fourth Proportional to 18,111.51, 24,994.98 and 10,153.53

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111.51 : 24,994.98 = 10,153.53 : x
2. Step 2: Convert to fraction form
   18,111.51/24,994.98 = 10,153.53/x
3. Step 3: Cross multiply
   18,111.51x = 24,994.98 × 10,153.53
4. Step 4: Simplify right side
   18,111.51x = 253,787,279.28
5. Step 5: Solve for x
   x = 253,787,279.28/18,111.51
6. Step 6: Final answer
   x = 14,012.49