Finding the Fourth Proportional to 22,402.39, 30,913.71 and 13,327.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,402.39 : 30,913.71 = 13,327.25 : x
2. Step 2: Convert to fraction form
   22,402.39/30,913.71 = 13,327.25/x
3. Step 3: Cross multiply
   22,402.39x = 30,913.71 × 13,327.25
4. Step 4: Simplify right side
   22,402.39x = 411,994,741.60
5. Step 5: Solve for x
   x = 411,994,741.60/22,402.39
6. Step 6: Final answer
   x = 18,390.66