Finding the Fourth Proportional to 21,390.27, 32,084.86 and 5,807.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,390.27 : 32,084.86 = 5,807.49 : x
2. Step 2: Convert to fraction form
   21,390.27/32,084.86 = 5,807.49/x
3. Step 3: Cross multiply
   21,390.27x = 32,084.86 × 5,807.49
4. Step 4: Simplify right side
   21,390.27x = 186,332,503.60
5. Step 5: Solve for x
   x = 186,332,503.60/21,390.27
6. Step 6: Final answer
   x = 8,711.09