Finding the Fourth Proportional to 91,932.72, 126,767.88 and 83,884.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,932.72 : 126,767.88 = 83,884.56 : x
2. Step 2: Convert to fraction form
   91,932.72/126,767.88 = 83,884.56/x
3. Step 3: Cross multiply
   91,932.72x = 126,767.88 × 83,884.56
4. Step 4: Simplify right side
   91,932.72x = 10,633,867,835.93
5. Step 5: Solve for x
   x = 10,633,867,835.93/91,932.72
6. Step 6: Final answer
   x = 115,670.11