Finding the Fourth Proportional to 30,105.87, 41,547.56 and 18,168.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,105.87 : 41,547.56 = 18,168.99 : x
2. Step 2: Convert to fraction form
   30,105.87/41,547.56 = 18,168.99/x
3. Step 3: Cross multiply
   30,105.87x = 41,547.56 × 18,168.99
4. Step 4: Simplify right side
   30,105.87x = 754,877,111.32
5. Step 5: Solve for x
   x = 754,877,111.32/30,105.87
6. Step 6: Final answer
   x = 25,074.08