Finding the Fourth Proportional to 22,847.56, 31,529.62 and 12,911.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,847.56 : 31,529.62 = 12,911.56 : x
2. Step 2: Convert to fraction form
   22,847.56/31,529.62 = 12,911.56/x
3. Step 3: Cross multiply
   22,847.56x = 31,529.62 × 12,911.56
4. Step 4: Simplify right side
   22,847.56x = 407,096,580.41
5. Step 5: Solve for x
   x = 407,096,580.41/22,847.56
6. Step 6: Final answer
   x = 17,817.95