Finding the Fourth Proportional to 89,555.27, 123,616.62 and 55,583.64

Step by Step Solution

1. Step 1: Write the proportion equation
   89,555.27 : 123,616.62 = 55,583.64 : x
2. Step 2: Convert to fraction form
   89,555.27/123,616.62 = 55,583.64/x
3. Step 3: Cross multiply
   89,555.27x = 123,616.62 × 55,583.64
4. Step 4: Simplify right side
   89,555.27x = 6,871,061,704.10
5. Step 5: Solve for x
   x = 6,871,061,704.10/89,555.27
6. Step 6: Final answer
   x = 76,724.26