Finding the Fourth Proportional to 83,918.24, 115,809.69 and 51,671.48

Step by Step Solution

1. Step 1: Write the proportion equation
   83,918.24 : 115,809.69 = 51,671.48 : x
2. Step 2: Convert to fraction form
   83,918.24/115,809.69 = 51,671.48/x
3. Step 3: Cross multiply
   83,918.24x = 115,809.69 × 51,671.48
4. Step 4: Simplify right side
   83,918.24x = 5,984,057,501.59
5. Step 5: Solve for x
   x = 5,984,057,501.59/83,918.24
6. Step 6: Final answer
   x = 71,308.18