Finding the Fourth Proportional to 21,456.48, 32,181 and 5,870.40

Step by Step Solution

1. Step 1: Write the proportion equation
   21,456.48 : 32,181 = 5,870.40 : x
2. Step 2: Convert to fraction form
   21,456.48/32,181 = 5,870.40/x
3. Step 3: Cross multiply
   21,456.48x = 32,181 × 5,870.40
4. Step 4: Simplify right side
   21,456.48x = 188,915,342.40
5. Step 5: Solve for x
   x = 188,915,342.40/21,456.48
6. Step 6: Final answer
   x = 8,804.58