Finding the Fourth Proportional to 71,131.17, 106,719.54 and 49,806.09

Step by Step Solution

1. Step 1: Write the proportion equation
   71,131.17 : 106,719.54 = 49,806.09 : x
2. Step 2: Convert to fraction form
   71,131.17/106,719.54 = 49,806.09/x
3. Step 3: Cross multiply
   71,131.17x = 106,719.54 × 49,806.09
4. Step 4: Simplify right side
   71,131.17x = 5,315,283,014.00
5. Step 5: Solve for x
   x = 5,315,283,014.00/71,131.17
6. Step 6: Final answer
   x = 74,725.09