Finding the Fourth Proportional to 46,403.72, 64,016.32 and 31,291.48

Step by Step Solution

1. Step 1: Write the proportion equation
   46,403.72 : 64,016.32 = 31,291.48 : x
2. Step 2: Convert to fraction form
   46,403.72/64,016.32 = 31,291.48/x
3. Step 3: Cross multiply
   46,403.72x = 64,016.32 × 31,291.48
4. Step 4: Simplify right side
   46,403.72x = 2,003,165,396.95
5. Step 5: Solve for x
   x = 2,003,165,396.95/46,403.72
6. Step 6: Final answer
   x = 43,168.21