Finding the Fourth Proportional to 22,373.74, 30,875.09 and 12,813.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,373.74 : 30,875.09 = 12,813.31 : x
2. Step 2: Convert to fraction form
   22,373.74/30,875.09 = 12,813.31/x
3. Step 3: Cross multiply
   22,373.74x = 30,875.09 × 12,813.31
4. Step 4: Simplify right side
   22,373.74x = 395,612,099.45
5. Step 5: Solve for x
   x = 395,612,099.45/22,373.74
6. Step 6: Final answer
   x = 17,681.98