Finding the Fourth Proportional to 113,638.24, 156,786.01 and 65,882.05

Step by Step Solution

1. Step 1: Write the proportion equation
   113,638.24 : 156,786.01 = 65,882.05 : x
2. Step 2: Convert to fraction form
   113,638.24/156,786.01 = 65,882.05/x
3. Step 3: Cross multiply
   113,638.24x = 156,786.01 × 65,882.05
4. Step 4: Simplify right side
   113,638.24x = 10,329,383,585.42
5. Step 5: Solve for x
   x = 10,329,383,585.42/113,638.24
6. Step 6: Final answer
   x = 90,897.08