Finding the Fourth Proportional to 123,951.72, 171,054.60 and 73,641

Step by Step Solution

1. Step 1: Write the proportion equation
   123,951.72 : 171,054.60 = 73,641 : x
2. Step 2: Convert to fraction form
   123,951.72/171,054.60 = 73,641/x
3. Step 3: Cross multiply
   123,951.72x = 171,054.60 × 73,641
4. Step 4: Simplify right side
   123,951.72x = 12,596,631,798.60
5. Step 5: Solve for x
   x = 12,596,631,798.60/123,951.72
6. Step 6: Final answer
   x = 101,625.31