Finding the Fourth Proportional to 91,930.72, 126,765.12 and 83,882.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,930.72 : 126,765.12 = 83,882.56 : x
2. Step 2: Convert to fraction form
   91,930.72/126,765.12 = 83,882.56/x
3. Step 3: Cross multiply
   91,930.72x = 126,765.12 × 83,882.56
4. Step 4: Simplify right side
   91,930.72x = 10,633,382,784.31
5. Step 5: Solve for x
   x = 10,633,382,784.31/91,930.72
6. Step 6: Final answer
   x = 115,667.35