Finding the Fourth Proportional to 130,019.05, 179,426.53 and 72,658.37

Step by Step Solution

1. Step 1: Write the proportion equation
   130,019.05 : 179,426.53 = 72,658.37 : x
2. Step 2: Convert to fraction form
   130,019.05/179,426.53 = 72,658.37/x
3. Step 3: Cross multiply
   130,019.05x = 179,426.53 × 72,658.37
4. Step 4: Simplify right side
   130,019.05x = 13,036,839,610.49
5. Step 5: Solve for x
   x = 13,036,839,610.49/130,019.05
6. Step 6: Final answer
   x = 100,268.69