Finding the Fourth Proportional to 129,736.77, 179,036.78 and 73,148.15

Step by Step Solution

1. Step 1: Write the proportion equation
   129,736.77 : 179,036.78 = 73,148.15 : x
2. Step 2: Convert to fraction form
   129,736.77/179,036.78 = 73,148.15/x
3. Step 3: Cross multiply
   129,736.77x = 179,036.78 × 73,148.15
4. Step 4: Simplify right side
   129,736.77x = 13,096,207,978.03
5. Step 5: Solve for x
   x = 13,096,207,978.03/129,736.77
6. Step 6: Final answer
   x = 100,944.46