Finding the Fourth Proportional to 113,609.41, 156,755.72 and 65,208.38

Step by Step Solution

1. Step 1: Write the proportion equation
   113,609.41 : 156,755.72 = 65,208.38 : x
2. Step 2: Convert to fraction form
   113,609.41/156,755.72 = 65,208.38/x
3. Step 3: Cross multiply
   113,609.41x = 156,755.72 × 65,208.38
4. Step 4: Simplify right side
   113,609.41x = 10,221,785,936.18
5. Step 5: Solve for x
   x = 10,221,785,936.18/113,609.41
6. Step 6: Final answer
   x = 89,973.06