Finding the Fourth Proportional to 49,730.64, 68,636.61 and 31,824.78

Step by Step Solution

1. Step 1: Write the proportion equation
   49,730.64 : 68,636.61 = 31,824.78 : x
2. Step 2: Convert to fraction form
   49,730.64/68,636.61 = 31,824.78/x
3. Step 3: Cross multiply
   49,730.64x = 68,636.61 × 31,824.78
4. Step 4: Simplify right side
   49,730.64x = 2,184,345,013.20
5. Step 5: Solve for x
   x = 2,184,345,013.20/49,730.64
6. Step 6: Final answer
   x = 43,923.53