Finding the Fourth Proportional to 107,871.74, 161,839.17 and 55,317.98

Step by Step Solution

1. Step 1: Write the proportion equation
   107,871.74 : 161,839.17 = 55,317.98 : x
2. Step 2: Convert to fraction form
   107,871.74/161,839.17 = 55,317.98/x
3. Step 3: Cross multiply
   107,871.74x = 161,839.17 × 55,317.98
4. Step 4: Simplify right side
   107,871.74x = 8,952,615,969.28
5. Step 5: Solve for x
   x = 8,952,615,969.28/107,871.74
6. Step 6: Final answer
   x = 82,993.15