Finding the Fourth Proportional to 22,401.01, 30,909.90 and 12,967.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,401.01 : 30,909.90 = 12,967.75 : x
2. Step 2: Convert to fraction form
   22,401.01/30,909.90 = 12,967.75/x
3. Step 3: Cross multiply
   22,401.01x = 30,909.90 × 12,967.75
4. Step 4: Simplify right side
   22,401.01x = 400,831,855.73
5. Step 5: Solve for x
   x = 400,831,855.73/22,401.01
6. Step 6: Final answer
   x = 17,893.47