Finding the Fourth Proportional to 81,954.18, 113,106.33 and 49,688.37

Step by Step Solution

1. Step 1: Write the proportion equation
   81,954.18 : 113,106.33 = 49,688.37 : x
2. Step 2: Convert to fraction form
   81,954.18/113,106.33 = 49,688.37/x
3. Step 3: Cross multiply
   81,954.18x = 113,106.33 × 49,688.37
4. Step 4: Simplify right side
   81,954.18x = 5,620,069,174.38
5. Step 5: Solve for x
   x = 5,620,069,174.38/81,954.18
6. Step 6: Final answer
   x = 68,575.75