Finding the Fourth Proportional to 22,500.72, 31,050.96 and 12,941.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,500.72 : 31,050.96 = 12,941.28 : x
2. Step 2: Convert to fraction form
   22,500.72/31,050.96 = 12,941.28/x
3. Step 3: Cross multiply
   22,500.72x = 31,050.96 × 12,941.28
4. Step 4: Simplify right side
   22,500.72x = 401,839,167.63
5. Step 5: Solve for x
   x = 401,839,167.63/22,500.72
6. Step 6: Final answer
   x = 17,858.95