Finding the Fourth Proportional to 46,297.89, 69,441.57 and 13,019.31

Step by Step Solution

1. Step 1: Write the proportion equation
   46,297.89 : 69,441.57 = 13,019.31 : x
2. Step 2: Convert to fraction form
   46,297.89/69,441.57 = 13,019.31/x
3. Step 3: Cross multiply
   46,297.89x = 69,441.57 × 13,019.31
4. Step 4: Simplify right side
   46,297.89x = 904,081,326.72
5. Step 5: Solve for x
   x = 904,081,326.72/46,297.89
6. Step 6: Final answer
   x = 19,527.48