Finding the Fourth Proportional to 81,962.09, 113,112.89 and 49,699.79

Step by Step Solution

1. Step 1: Write the proportion equation
   81,962.09 : 113,112.89 = 49,699.79 : x
2. Step 2: Convert to fraction form
   81,962.09/113,112.89 = 49,699.79/x
3. Step 3: Cross multiply
   81,962.09x = 113,112.89 × 49,699.79
4. Step 4: Simplify right side
   81,962.09x = 5,621,686,065.23
5. Step 5: Solve for x
   x = 5,621,686,065.23/81,962.09
6. Step 6: Final answer
   x = 68,588.86