Finding the Fourth Proportional to 22,983.84, 31,715.46 and 12,910

Step by Step Solution

1. Step 1: Write the proportion equation
   22,983.84 : 31,715.46 = 12,910 : x
2. Step 2: Convert to fraction form
   22,983.84/31,715.46 = 12,910/x
3. Step 3: Cross multiply
   22,983.84x = 31,715.46 × 12,910
4. Step 4: Simplify right side
   22,983.84x = 409,446,588.60
5. Step 5: Solve for x
   x = 409,446,588.60/22,983.84
6. Step 6: Final answer
   x = 17,814.54