Finding the Fourth Proportional to 157,491.54, 236,003.94 and 129,609.72

Step by Step Solution

1. Step 1: Write the proportion equation
   157,491.54 : 236,003.94 = 129,609.72 : x
2. Step 2: Convert to fraction form
   157,491.54/236,003.94 = 129,609.72/x
3. Step 3: Cross multiply
   157,491.54x = 236,003.94 × 129,609.72
4. Step 4: Simplify right side
   157,491.54x = 30,588,404,582.30
5. Step 5: Solve for x
   x = 30,588,404,582.30/157,491.54
6. Step 6: Final answer
   x = 194,222.53