Finding the Fourth Proportional to 132,929.48, 199,431.89 and 54,100.28

Step by Step Solution

1. Step 1: Write the proportion equation
   132,929.48 : 199,431.89 = 54,100.28 : x
2. Step 2: Convert to fraction form
   132,929.48/199,431.89 = 54,100.28/x
3. Step 3: Cross multiply
   132,929.48x = 199,431.89 × 54,100.28
4. Step 4: Simplify right side
   132,929.48x = 10,789,319,822.27
5. Step 5: Solve for x
   x = 10,789,319,822.27/132,929.48
6. Step 6: Final answer
   x = 81,165.74