Finding the Fourth Proportional to 113,556.63, 156,673.46 and 65,800.75

Step by Step Solution

1. Step 1: Write the proportion equation
   113,556.63 : 156,673.46 = 65,800.75 : x
2. Step 2: Convert to fraction form
   113,556.63/156,673.46 = 65,800.75/x
3. Step 3: Cross multiply
   113,556.63x = 156,673.46 × 65,800.75
4. Step 4: Simplify right side
   113,556.63x = 10,309,231,173.10
5. Step 5: Solve for x
   x = 10,309,231,173.10/113,556.63
6. Step 6: Final answer
   x = 90,784.93