Finding the Fourth Proportional to 113,157.48, 156,164.58 and 65,422.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,157.48 : 156,164.58 = 65,422.56 : x
2. Step 2: Convert to fraction form
   113,157.48/156,164.58 = 65,422.56/x
3. Step 3: Cross multiply
   113,157.48x = 156,164.58 × 65,422.56
4. Step 4: Simplify right side
   113,157.48x = 10,216,686,604.92
5. Step 5: Solve for x
   x = 10,216,686,604.92/113,157.48
6. Step 6: Final answer
   x = 90,287.33