Finding the Fourth Proportional to 89,685, 123,774.04 and 66,984.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,685 : 123,774.04 = 66,984.56 : x
2. Step 2: Convert to fraction form
   89,685/123,774.04 = 66,984.56/x
3. Step 3: Cross multiply
   89,685x = 123,774.04 × 66,984.56
4. Step 4: Simplify right side
   89,685x = 8,290,949,608.82
5. Step 5: Solve for x
   x = 8,290,949,608.82/89,685
6. Step 6: Final answer
   x = 92,445.22