Finding the Fourth Proportional to 113,095.12, 156,076.68 and 65,354.80

Step by Step Solution

1. Step 1: Write the proportion equation
   113,095.12 : 156,076.68 = 65,354.80 : x
2. Step 2: Convert to fraction form
   113,095.12/156,076.68 = 65,354.80/x
3. Step 3: Cross multiply
   113,095.12x = 156,076.68 × 65,354.80
4. Step 4: Simplify right side
   113,095.12x = 10,200,360,206.06
5. Step 5: Solve for x
   x = 10,200,360,206.06/113,095.12
6. Step 6: Final answer
   x = 90,192.75