Finding the Fourth Proportional to 113,104.35, 156,103.20 and 65,385.36

Step by Step Solution

1. Step 1: Write the proportion equation
   113,104.35 : 156,103.20 = 65,385.36 : x
2. Step 2: Convert to fraction form
   113,104.35/156,103.20 = 65,385.36/x
3. Step 3: Cross multiply
   113,104.35x = 156,103.20 × 65,385.36
4. Step 4: Simplify right side
   113,104.35x = 10,206,863,929.15
5. Step 5: Solve for x
   x = 10,206,863,929.15/113,104.35
6. Step 6: Final answer
   x = 90,242.89