Finding the Fourth Proportional to 123,972.72, 171,083.58 and 73,662

Step by Step Solution

1. Step 1: Write the proportion equation
   123,972.72 : 171,083.58 = 73,662 : x
2. Step 2: Convert to fraction form
   123,972.72/171,083.58 = 73,662/x
3. Step 3: Cross multiply
   123,972.72x = 171,083.58 × 73,662
4. Step 4: Simplify right side
   123,972.72x = 12,602,358,669.96
5. Step 5: Solve for x
   x = 12,602,358,669.96/123,972.72
6. Step 6: Final answer
   x = 101,654.29