Finding the Fourth Proportional to 20,623.30, 30,936.57 and 5,831.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,623.30 : 30,936.57 = 5,831.98 : x
2. Step 2: Convert to fraction form
   20,623.30/30,936.57 = 5,831.98/x
3. Step 3: Cross multiply
   20,623.30x = 30,936.57 × 5,831.98
4. Step 4: Simplify right side
   20,623.30x = 180,421,457.51
5. Step 5: Solve for x
   x = 180,421,457.51/20,623.30
6. Step 6: Final answer
   x = 8,748.43