Finding the Fourth Proportional to 113,723.66, 156,939.69 and 65,977.82

Step by Step Solution

1. Step 1: Write the proportion equation
   113,723.66 : 156,939.69 = 65,977.82 : x
2. Step 2: Convert to fraction form
   113,723.66/156,939.69 = 65,977.82/x
3. Step 3: Cross multiply
   113,723.66x = 156,939.69 × 65,977.82
4. Step 4: Simplify right side
   113,723.66x = 10,354,538,617.68
5. Step 5: Solve for x
   x = 10,354,538,617.68/113,723.66
6. Step 6: Final answer
   x = 91,049.99