Finding the Fourth Proportional to 46,766.72, 64,513.32 and 31,639.16

Step by Step Solution

1. Step 1: Write the proportion equation
   46,766.72 : 64,513.32 = 31,639.16 : x
2. Step 2: Convert to fraction form
   46,766.72/64,513.32 = 31,639.16/x
3. Step 3: Cross multiply
   46,766.72x = 64,513.32 × 31,639.16
4. Step 4: Simplify right side
   46,766.72x = 2,041,147,253.61
5. Step 5: Solve for x
   x = 2,041,147,253.61/46,766.72
6. Step 6: Final answer
   x = 43,645.29