Finding the Fourth Proportional to 113,605.10, 156,756.60 and 65,849.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,605.10 : 156,756.60 = 65,849.12 : x
2. Step 2: Convert to fraction form
   113,605.10/156,756.60 = 65,849.12/x
3. Step 3: Cross multiply
   113,605.10x = 156,756.60 × 65,849.12
4. Step 4: Simplify right side
   113,605.10x = 10,322,284,164.19
5. Step 5: Solve for x
   x = 10,322,284,164.19/113,605.10
6. Step 6: Final answer
   x = 90,861.10