Finding the Fourth Proportional to 22,663.37, 31,274.87 and 12,591.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,663.37 : 31,274.87 = 12,591.83 : x
2. Step 2: Convert to fraction form
   22,663.37/31,274.87 = 12,591.83/x
3. Step 3: Cross multiply
   22,663.37x = 31,274.87 × 12,591.83
4. Step 4: Simplify right side
   22,663.37x = 393,807,861.54
5. Step 5: Solve for x
   x = 393,807,861.54/22,663.37
6. Step 6: Final answer
   x = 17,376.40