Finding the Fourth Proportional to 113,305.89, 156,349.86 and 65,550.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,305.89 : 156,349.86 = 65,550.31 : x
2. Step 2: Convert to fraction form
   113,305.89/156,349.86 = 65,550.31/x
3. Step 3: Cross multiply
   113,305.89x = 156,349.86 × 65,550.31
4. Step 4: Simplify right side
   113,305.89x = 10,248,781,791.46
5. Step 5: Solve for x
   x = 10,248,781,791.46/113,305.89
6. Step 6: Final answer
   x = 90,452.33