Finding the Fourth Proportional to 22,947.59, 31,669.31 and 12,877

Step by Step Solution

1. Step 1: Write the proportion equation
   22,947.59 : 31,669.31 = 12,877 : x
2. Step 2: Convert to fraction form
   22,947.59/31,669.31 = 12,877/x
3. Step 3: Cross multiply
   22,947.59x = 31,669.31 × 12,877
4. Step 4: Simplify right side
   22,947.59x = 407,805,704.87
5. Step 5: Solve for x
   x = 407,805,704.87/22,947.59
6. Step 6: Final answer
   x = 17,771.18