Finding the Fourth Proportional to 89,287.16, 123,203.25 and 53,469.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,287.16 : 123,203.25 = 53,469.59 : x
2. Step 2: Convert to fraction form
   89,287.16/123,203.25 = 53,469.59/x
3. Step 3: Cross multiply
   89,287.16x = 123,203.25 × 53,469.59
4. Step 4: Simplify right side
   89,287.16x = 6,587,626,648.15
5. Step 5: Solve for x
   x = 6,587,626,648.15/89,287.16
6. Step 6: Final answer
   x = 73,780.23