Finding the Fourth Proportional to 118,081.29, 177,056.94 and 80,683.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,081.29 : 177,056.94 = 80,683.59 : x
2. Step 2: Convert to fraction form
   118,081.29/177,056.94 = 80,683.59/x
3. Step 3: Cross multiply
   118,081.29x = 177,056.94 × 80,683.59
4. Step 4: Simplify right side
   118,081.29x = 14,285,590,066.30
5. Step 5: Solve for x
   x = 14,285,590,066.30/118,081.29
6. Step 6: Final answer
   x = 120,980.98