Finding the Fourth Proportional to 188,215.03, 259,622.71 and 111,683.80

Step by Step Solution

1. Step 1: Write the proportion equation
   188,215.03 : 259,622.71 = 111,683.80 : x
2. Step 2: Convert to fraction form
   188,215.03/259,622.71 = 111,683.80/x
3. Step 3: Cross multiply
   188,215.03x = 259,622.71 × 111,683.80
4. Step 4: Simplify right side
   188,215.03x = 28,995,650,819.10
5. Step 5: Solve for x
   x = 28,995,650,819.10/188,215.03
6. Step 6: Final answer
   x = 154,055.98