Finding the Fourth Proportional to 89,127.96, 133,690.52 and 21,660.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,127.96 : 133,690.52 = 21,660.54 : x
2. Step 2: Convert to fraction form
   89,127.96/133,690.52 = 21,660.54/x
3. Step 3: Cross multiply
   89,127.96x = 133,690.52 × 21,660.54
4. Step 4: Simplify right side
   89,127.96x = 2,895,808,747.78
5. Step 5: Solve for x
   x = 2,895,808,747.78/89,127.96
6. Step 6: Final answer
   x = 32,490.46