Finding the Fourth Proportional to 22,812.38, 31,482.32 and 12,741.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,812.38 : 31,482.32 = 12,741.05 : x
2. Step 2: Convert to fraction form
   22,812.38/31,482.32 = 12,741.05/x
3. Step 3: Cross multiply
   22,812.38x = 31,482.32 × 12,741.05
4. Step 4: Simplify right side
   22,812.38x = 401,117,722.82
5. Step 5: Solve for x
   x = 401,117,722.82/22,812.38
6. Step 6: Final answer
   x = 17,583.33