Finding the Fourth Proportional to 28,471.02, 42,660.09 and 23,805.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,471.02 : 42,660.09 = 23,805.42 : x
2. Step 2: Convert to fraction form
   28,471.02/42,660.09 = 23,805.42/x
3. Step 3: Cross multiply
   28,471.02x = 42,660.09 × 23,805.42
4. Step 4: Simplify right side
   28,471.02x = 1,015,541,359.69
5. Step 5: Solve for x
   x = 1,015,541,359.69/28,471.02
6. Step 6: Final answer
   x = 35,669.30