Finding the Fourth Proportional to 129,758.39, 179,072.72 and 73,168.55

Step by Step Solution

1. Step 1: Write the proportion equation
   129,758.39 : 179,072.72 = 73,168.55 : x
2. Step 2: Convert to fraction form
   129,758.39/179,072.72 = 73,168.55/x
3. Step 3: Cross multiply
   129,758.39x = 179,072.72 × 73,168.55
4. Step 4: Simplify right side
   129,758.39x = 13,102,490,005.75
5. Step 5: Solve for x
   x = 13,102,490,005.75/129,758.39
6. Step 6: Final answer
   x = 100,976.06