Finding the Fourth Proportional to 22,736.06, 31,375.54 and 12,663.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,736.06 : 31,375.54 = 12,663.91 : x
2. Step 2: Convert to fraction form
   22,736.06/31,375.54 = 12,663.91/x
3. Step 3: Cross multiply
   22,736.06x = 31,375.54 × 12,663.91
4. Step 4: Simplify right side
   22,736.06x = 397,337,014.76
5. Step 5: Solve for x
   x = 397,337,014.76/22,736.06
6. Step 6: Final answer
   x = 17,476.07