Finding the Fourth Proportional to 113,145.06, 156,105.03 and 65,380.98

Step by Step Solution

1. Step 1: Write the proportion equation
   113,145.06 : 156,105.03 = 65,380.98 : x
2. Step 2: Convert to fraction form
   113,145.06/156,105.03 = 65,380.98/x
3. Step 3: Cross multiply
   113,145.06x = 156,105.03 × 65,380.98
4. Step 4: Simplify right side
   113,145.06x = 10,206,299,844.33
5. Step 5: Solve for x
   x = 10,206,299,844.33/113,145.06
6. Step 6: Final answer
   x = 90,205.44