Finding the Fourth Proportional to 54,958, 82,381.61 and 21,665.18

Step by Step Solution

1. Step 1: Write the proportion equation
   54,958 : 82,381.61 = 21,665.18 : x
2. Step 2: Convert to fraction form
   54,958/82,381.61 = 21,665.18/x
3. Step 3: Cross multiply
   54,958x = 82,381.61 × 21,665.18
4. Step 4: Simplify right side
   54,958x = 1,784,812,409.34
5. Step 5: Solve for x
   x = 1,784,812,409.34/54,958
6. Step 6: Final answer
   x = 32,475.93