Finding the Fourth Proportional to 123,665.22, 170,642.49 and 73,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,665.22 : 170,642.49 = 73,354.50 : x
2. Step 2: Convert to fraction form
   123,665.22/170,642.49 = 73,354.50/x
3. Step 3: Cross multiply
   123,665.22x = 170,642.49 × 73,354.50
4. Step 4: Simplify right side
   123,665.22x = 12,517,394,532.71
5. Step 5: Solve for x
   x = 12,517,394,532.71/123,665.22
6. Step 6: Final answer
   x = 101,220.01