Finding the Fourth Proportional to 123,973.72, 171,084.96 and 73,663

Step by Step Solution

1. Step 1: Write the proportion equation
   123,973.72 : 171,084.96 = 73,663 : x
2. Step 2: Convert to fraction form
   123,973.72/171,084.96 = 73,663/x
3. Step 3: Cross multiply
   123,973.72x = 171,084.96 × 73,663
4. Step 4: Simplify right side
   123,973.72x = 12,602,631,408.48
5. Step 5: Solve for x
   x = 12,602,631,408.48/123,973.72
6. Step 6: Final answer
   x = 101,655.67