Finding the Fourth Proportional to 22,976.84, 31,705.80 and 12,903

Step by Step Solution

1. Step 1: Write the proportion equation
   22,976.84 : 31,705.80 = 12,903 : x
2. Step 2: Convert to fraction form
   22,976.84/31,705.80 = 12,903/x
3. Step 3: Cross multiply
   22,976.84x = 31,705.80 × 12,903
4. Step 4: Simplify right side
   22,976.84x = 409,099,937.40
5. Step 5: Solve for x
   x = 409,099,937.40/22,976.84
6. Step 6: Final answer
   x = 17,804.88