Finding the Fourth Proportional to 49,127.50, 67,806.89 and 31,219.01

Step by Step Solution

1. Step 1: Write the proportion equation
   49,127.50 : 67,806.89 = 31,219.01 : x
2. Step 2: Convert to fraction form
   49,127.50/67,806.89 = 31,219.01/x
3. Step 3: Cross multiply
   49,127.50x = 67,806.89 × 31,219.01
4. Step 4: Simplify right side
   49,127.50x = 2,116,863,976.98
5. Step 5: Solve for x
   x = 2,116,863,976.98/49,127.50
6. Step 6: Final answer
   x = 43,089.19