Finding the Fourth Proportional to 151,926.78, 209,654.55 and 83,942.67

Step by Step Solution

1. Step 1: Write the proportion equation
   151,926.78 : 209,654.55 = 83,942.67 : x
2. Step 2: Convert to fraction form
   151,926.78/209,654.55 = 83,942.67/x
3. Step 3: Cross multiply
   151,926.78x = 209,654.55 × 83,942.67
4. Step 4: Simplify right side
   151,926.78x = 17,598,962,704.65
5. Step 5: Solve for x
   x = 17,598,962,704.65/151,926.78
6. Step 6: Final answer
   x = 115,838.45