Finding the Fourth Proportional to 131,676.31, 197,493.79 and 42,929.37

Step by Step Solution

1. Step 1: Write the proportion equation
   131,676.31 : 197,493.79 = 42,929.37 : x
2. Step 2: Convert to fraction form
   131,676.31/197,493.79 = 42,929.37/x
3. Step 3: Cross multiply
   131,676.31x = 197,493.79 × 42,929.37
4. Step 4: Simplify right side
   131,676.31x = 8,478,283,983.61
5. Step 5: Solve for x
   x = 8,478,283,983.61/131,676.31
6. Step 6: Final answer
   x = 64,387.31