Finding the Fourth Proportional to 132,929.98, 199,432.64 and 54,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   132,929.98 : 199,432.64 = 54,100.78 : x
2. Step 2: Convert to fraction form
   132,929.98/199,432.64 = 54,100.78/x
3. Step 3: Cross multiply
   132,929.98x = 199,432.64 × 54,100.78
4. Step 4: Simplify right side
   132,929.98x = 10,789,460,113.79
5. Step 5: Solve for x
   x = 10,789,460,113.79/132,929.98
6. Step 6: Final answer
   x = 81,166.49