Finding the Fourth Proportional to 46,447.83, 64,124.60 and 30,578.42

Step by Step Solution

1. Step 1: Write the proportion equation
   46,447.83 : 64,124.60 = 30,578.42 : x
2. Step 2: Convert to fraction form
   46,447.83/64,124.60 = 30,578.42/x
3. Step 3: Cross multiply
   46,447.83x = 64,124.60 × 30,578.42
4. Step 4: Simplify right side
   46,447.83x = 1,960,828,958.55
5. Step 5: Solve for x
   x = 1,960,828,958.55/46,447.83
6. Step 6: Final answer
   x = 42,215.73