Finding the Fourth Proportional to 115,720.39, 173,300.27 and 80,081.84

Step by Step Solution

1. Step 1: Write the proportion equation
   115,720.39 : 173,300.27 = 80,081.84 : x
2. Step 2: Convert to fraction form
   115,720.39/173,300.27 = 80,081.84/x
3. Step 3: Cross multiply
   115,720.39x = 173,300.27 × 80,081.84
4. Step 4: Simplify right side
   115,720.39x = 13,878,204,494.10
5. Step 5: Solve for x
   x = 13,878,204,494.10/115,720.39
6. Step 6: Final answer
   x = 119,928.77