Finding the Fourth Proportional to 105,590.37, 145,725.16 and 60,275.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,590.37 : 145,725.16 = 60,275.16 : x
2. Step 2: Convert to fraction form
   105,590.37/145,725.16 = 60,275.16/x
3. Step 3: Cross multiply
   105,590.37x = 145,725.16 × 60,275.16
4. Step 4: Simplify right side
   105,590.37x = 8,783,607,961.49
5. Step 5: Solve for x
   x = 8,783,607,961.49/105,590.37
6. Step 6: Final answer
   x = 83,185.69