Finding the Fourth Proportional to 89,556.52, 123,618.35 and 55,584.89

Step by Step Solution

1. Step 1: Write the proportion equation
   89,556.52 : 123,618.35 = 55,584.89 : x
2. Step 2: Convert to fraction form
   89,556.52/123,618.35 = 55,584.89/x
3. Step 3: Cross multiply
   89,556.52x = 123,618.35 × 55,584.89
4. Step 4: Simplify right side
   89,556.52x = 6,871,312,386.73
5. Step 5: Solve for x
   x = 6,871,312,386.73/89,556.52
6. Step 6: Final answer
   x = 76,725.99