Finding the Fourth Proportional to 69,186.43, 103,782.38 and 19,270.89

Step by Step Solution

1. Step 1: Write the proportion equation
   69,186.43 : 103,782.38 = 19,270.89 : x
2. Step 2: Convert to fraction form
   69,186.43/103,782.38 = 19,270.89/x
3. Step 3: Cross multiply
   69,186.43x = 103,782.38 × 19,270.89
4. Step 4: Simplify right side
   69,186.43x = 1,999,978,467.78
5. Step 5: Solve for x
   x = 1,999,978,467.78/69,186.43
6. Step 6: Final answer
   x = 28,907.09