Finding the Fourth Proportional to 83,105.48, 115,459.76 and 82,109.03

Step by Step Solution

1. Step 1: Write the proportion equation
   83,105.48 : 115,459.76 = 82,109.03 : x
2. Step 2: Convert to fraction form
   83,105.48/115,459.76 = 82,109.03/x
3. Step 3: Cross multiply
   83,105.48x = 115,459.76 × 82,109.03
4. Step 4: Simplify right side
   83,105.48x = 9,480,287,909.79
5. Step 5: Solve for x
   x = 9,480,287,909.79/83,105.48
6. Step 6: Final answer
   x = 114,075.37