Finding the Fourth Proportional to 116,976.84, 161,443.98 and 71,657.34

Step by Step Solution

1. Step 1: Write the proportion equation
   116,976.84 : 161,443.98 = 71,657.34 : x
2. Step 2: Convert to fraction form
   116,976.84/161,443.98 = 71,657.34/x
3. Step 3: Cross multiply
   116,976.84x = 161,443.98 × 71,657.34
4. Step 4: Simplify right side
   116,976.84x = 11,568,646,165.81
5. Step 5: Solve for x
   x = 11,568,646,165.81/116,976.84
6. Step 6: Final answer
   x = 98,896.89