Finding the Fourth Proportional to 14,904.86, 20,568.71 and 8,190.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,904.86 : 20,568.71 = 8,190.50 : x
2. Step 2: Convert to fraction form
   14,904.86/20,568.71 = 8,190.50/x
3. Step 3: Cross multiply
   14,904.86x = 20,568.71 × 8,190.50
4. Step 4: Simplify right side
   14,904.86x = 168,467,936.89
5. Step 5: Solve for x
   x = 168,467,936.89/14,904.86
6. Step 6: Final answer
   x = 11,302.89