Finding the Fourth Proportional to 132,189.72, 182,421.88 and 71,760.34

Step by Step Solution

1. Step 1: Write the proportion equation
   132,189.72 : 182,421.88 = 71,760.34 : x
2. Step 2: Convert to fraction form
   132,189.72/182,421.88 = 71,760.34/x
3. Step 3: Cross multiply
   132,189.72x = 182,421.88 × 71,760.34
4. Step 4: Simplify right side
   132,189.72x = 13,090,656,132.24
5. Step 5: Solve for x
   x = 13,090,656,132.24/132,189.72
6. Step 6: Final answer
   x = 99,029.31