Finding the Fourth Proportional to 113,609.10, 156,762.12 and 65,853.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,609.10 : 156,762.12 = 65,853.12 : x
2. Step 2: Convert to fraction form
   113,609.10/156,762.12 = 65,853.12/x
3. Step 3: Cross multiply
   113,609.10x = 156,762.12 × 65,853.12
4. Step 4: Simplify right side
   113,609.10x = 10,323,274,699.81
5. Step 5: Solve for x
   x = 10,323,274,699.81/113,609.10
6. Step 6: Final answer
   x = 90,866.62