Finding the Fourth Proportional to 113,116.37, 156,083.22 and 65,360.45

Step by Step Solution

1. Step 1: Write the proportion equation
   113,116.37 : 156,083.22 = 65,360.45 : x
2. Step 2: Convert to fraction form
   113,116.37/156,083.22 = 65,360.45/x
3. Step 3: Cross multiply
   113,116.37x = 156,083.22 × 65,360.45
4. Step 4: Simplify right side
   113,116.37x = 10,201,669,886.86
5. Step 5: Solve for x
   x = 10,201,669,886.86/113,116.37
6. Step 6: Final answer
   x = 90,187.39