Finding the Fourth Proportional to 128,196.93, 192,364.25 and 53,368.73

Step by Step Solution

1. Step 1: Write the proportion equation
   128,196.93 : 192,364.25 = 53,368.73 : x
2. Step 2: Convert to fraction form
   128,196.93/192,364.25 = 53,368.73/x
3. Step 3: Cross multiply
   128,196.93x = 192,364.25 × 53,368.73
4. Step 4: Simplify right side
   128,196.93x = 10,266,234,491.24
5. Step 5: Solve for x
   x = 10,266,234,491.24/128,196.93
6. Step 6: Final answer
   x = 80,081.75