Finding the Fourth Proportional to 132,038.40, 198,066.72 and 53,152.80

Step by Step Solution

1. Step 1: Write the proportion equation
   132,038.40 : 198,066.72 = 53,152.80 : x
2. Step 2: Convert to fraction form
   132,038.40/198,066.72 = 53,152.80/x
3. Step 3: Cross multiply
   132,038.40x = 198,066.72 × 53,152.80
4. Step 4: Simplify right side
   132,038.40x = 10,527,800,754.82
5. Step 5: Solve for x
   x = 10,527,800,754.82/132,038.40
6. Step 6: Final answer
   x = 79,732.87