Finding the Fourth Proportional to 123,955.72, 171,060.07 and 73,645

Step by Step Solution

1. Step 1: Write the proportion equation
   123,955.72 : 171,060.07 = 73,645 : x
2. Step 2: Convert to fraction form
   123,955.72/171,060.07 = 73,645/x
3. Step 3: Cross multiply
   123,955.72x = 171,060.07 × 73,645
4. Step 4: Simplify right side
   123,955.72x = 12,597,718,855.15
5. Step 5: Solve for x
   x = 12,597,718,855.15/123,955.72
6. Step 6: Final answer
   x = 101,630.80