Finding the Fourth Proportional to 22,607.31, 31,198.47 and 12,536.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,607.31 : 31,198.47 = 12,536.18 : x
2. Step 2: Convert to fraction form
   22,607.31/31,198.47 = 12,536.18/x
3. Step 3: Cross multiply
   22,607.31x = 31,198.47 × 12,536.18
4. Step 4: Simplify right side
   22,607.31x = 391,109,592.64
5. Step 5: Solve for x
   x = 391,109,592.64/22,607.31
6. Step 6: Final answer
   x = 17,300.14