Finding the Fourth Proportional to 191,990.34, 264,945.87 and 107,107.56

Step by Step Solution

1. Step 1: Write the proportion equation
   191,990.34 : 264,945.87 = 107,107.56 : x
2. Step 2: Convert to fraction form
   191,990.34/264,945.87 = 107,107.56/x
3. Step 3: Cross multiply
   191,990.34x = 264,945.87 × 107,107.56
4. Step 4: Simplify right side
   191,990.34x = 28,377,705,667.78
5. Step 5: Solve for x
   x = 28,377,705,667.78/191,990.34
6. Step 6: Final answer
   x = 147,807.99