Finding the Fourth Proportional to 49,133.50, 67,815.18 and 31,225

Step by Step Solution

1. Step 1: Write the proportion equation
   49,133.50 : 67,815.18 = 31,225 : x
2. Step 2: Convert to fraction form
   49,133.50/67,815.18 = 31,225/x
3. Step 3: Cross multiply
   49,133.50x = 67,815.18 × 31,225
4. Step 4: Simplify right side
   49,133.50x = 2,117,528,995.50
5. Step 5: Solve for x
   x = 2,117,528,995.50/49,133.50
6. Step 6: Final answer
   x = 43,097.46