Finding the Fourth Proportional to 132,929.35, 199,431.69 and 54,100.15

Step by Step Solution

1. Step 1: Write the proportion equation
   132,929.35 : 199,431.69 = 54,100.15 : x
2. Step 2: Convert to fraction form
   132,929.35/199,431.69 = 54,100.15/x
3. Step 3: Cross multiply
   132,929.35x = 199,431.69 × 54,100.15
4. Step 4: Simplify right side
   132,929.35x = 10,789,284,343.75
5. Step 5: Solve for x
   x = 10,789,284,343.75/132,929.35
6. Step 6: Final answer
   x = 81,165.55