Finding the Fourth Proportional to 132,019.50, 182,198.43 and 72,415.02

Step by Step Solution

1. Step 1: Write the proportion equation
   132,019.50 : 182,198.43 = 72,415.02 : x
2. Step 2: Convert to fraction form
   132,019.50/182,198.43 = 72,415.02/x
3. Step 3: Cross multiply
   132,019.50x = 182,198.43 × 72,415.02
4. Step 4: Simplify right side
   132,019.50x = 13,193,902,952.42
5. Step 5: Solve for x
   x = 13,193,902,952.42/132,019.50
6. Step 6: Final answer
   x = 99,939.05