Finding the Fourth Proportional to 132,068.40, 198,111.72 and 53,182.80

Step by Step Solution

1. Step 1: Write the proportion equation
   132,068.40 : 198,111.72 = 53,182.80 : x
2. Step 2: Convert to fraction form
   132,068.40/198,111.72 = 53,182.80/x
3. Step 3: Cross multiply
   132,068.40x = 198,111.72 × 53,182.80
4. Step 4: Simplify right side
   132,068.40x = 10,536,135,982.42
5. Step 5: Solve for x
   x = 10,536,135,982.42/132,068.40
6. Step 6: Final answer
   x = 79,777.87