Finding the Fourth Proportional to 432,196.15, 648,270.79 and 132,676.78

Step by Step Solution

1. Step 1: Write the proportion equation
   432,196.15 : 648,270.79 = 132,676.78 : x
2. Step 2: Convert to fraction form
   432,196.15/648,270.79 = 132,676.78/x
3. Step 3: Cross multiply
   432,196.15x = 648,270.79 × 132,676.78
4. Step 4: Simplify right side
   432,196.15x = 86,010,480,985.26
5. Step 5: Solve for x
   x = 86,010,480,985.26/432,196.15
6. Step 6: Final answer
   x = 199,007.98