Finding the Fourth Proportional to 22,493.51, 31,042.04 and 12,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,493.51 : 31,042.04 = 12,936.50 : x
2. Step 2: Convert to fraction form
   22,493.51/31,042.04 = 12,936.50/x
3. Step 3: Cross multiply
   22,493.51x = 31,042.04 × 12,936.50
4. Step 4: Simplify right side
   22,493.51x = 401,575,130.57
5. Step 5: Solve for x
   x = 401,575,130.57/22,493.51
6. Step 6: Final answer
   x = 17,852.94