Finding the Fourth Proportional to 132,566.72, 182,942.42 and 72,137.34

Step by Step Solution

1. Step 1: Write the proportion equation
   132,566.72 : 182,942.42 = 72,137.34 : x
2. Step 2: Convert to fraction form
   132,566.72/182,942.42 = 72,137.34/x
3. Step 3: Cross multiply
   132,566.72x = 182,942.42 × 72,137.34
4. Step 4: Simplify right side
   132,566.72x = 13,196,979,191.28
5. Step 5: Solve for x
   x = 13,196,979,191.28/132,566.72
6. Step 6: Final answer
   x = 99,549.72