Finding the Fourth Proportional to 89,007.39, 133,418.79 and 55,650.87

Step by Step Solution

1. Step 1: Write the proportion equation
   89,007.39 : 133,418.79 = 55,650.87 : x
2. Step 2: Convert to fraction form
   89,007.39/133,418.79 = 55,650.87/x
3. Step 3: Cross multiply
   89,007.39x = 133,418.79 × 55,650.87
4. Step 4: Simplify right side
   89,007.39x = 7,424,871,737.85
5. Step 5: Solve for x
   x = 7,424,871,737.85/89,007.39
6. Step 6: Final answer
   x = 83,418.60