Finding the Fourth Proportional to 123,664.72, 170,641.80 and 73,354

Step by Step Solution

1. Step 1: Write the proportion equation
   123,664.72 : 170,641.80 = 73,354 : x
2. Step 2: Convert to fraction form
   123,664.72/170,641.80 = 73,354/x
3. Step 3: Cross multiply
   123,664.72x = 170,641.80 × 73,354
4. Step 4: Simplify right side
   123,664.72x = 12,517,258,597.20
5. Step 5: Solve for x
   x = 12,517,258,597.20/123,664.72
6. Step 6: Final answer
   x = 101,219.32