Finding the Fourth Proportional to 101,091.78, 151,666.83 and 30,981.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,091.78 : 151,666.83 = 30,981.42 : x
2. Step 2: Convert to fraction form
   101,091.78/151,666.83 = 30,981.42/x
3. Step 3: Cross multiply
   101,091.78x = 151,666.83 × 30,981.42
4. Step 4: Simplify right side
   101,091.78x = 4,698,853,760.30
5. Step 5: Solve for x
   x = 4,698,853,760.30/101,091.78
6. Step 6: Final answer
   x = 46,481.07