Finding the Fourth Proportional to 89,622.40, 123,594.78 and 55,636.24

Step by Step Solution

1. Step 1: Write the proportion equation
   89,622.40 : 123,594.78 = 55,636.24 : x
2. Step 2: Convert to fraction form
   89,622.40/123,594.78 = 55,636.24/x
3. Step 3: Cross multiply
   89,622.40x = 123,594.78 × 55,636.24
4. Step 4: Simplify right side
   89,622.40x = 6,876,348,842.83
5. Step 5: Solve for x
   x = 6,876,348,842.83/89,622.40
6. Step 6: Final answer
   x = 76,725.78