Finding the Fourth Proportional to 188,487.57, 260,105.94 and 103,603.89

Step by Step Solution

1. Step 1: Write the proportion equation
   188,487.57 : 260,105.94 = 103,603.89 : x
2. Step 2: Convert to fraction form
   188,487.57/260,105.94 = 103,603.89/x
3. Step 3: Cross multiply
   188,487.57x = 260,105.94 × 103,603.89
4. Step 4: Simplify right side
   188,487.57x = 26,947,987,196.11
5. Step 5: Solve for x
   x = 26,947,987,196.11/188,487.57
6. Step 6: Final answer
   x = 142,969.57