Finding the Fourth Proportional to 22,507.57, 31,059.49 and 12,946.74

Step by Step Solution

1. Step 1: Write the proportion equation
   22,507.57 : 31,059.49 = 12,946.74 : x
2. Step 2: Convert to fraction form
   22,507.57/31,059.49 = 12,946.74/x
3. Step 3: Cross multiply
   22,507.57x = 31,059.49 × 12,946.74
4. Step 4: Simplify right side
   22,507.57x = 402,119,141.56
5. Step 5: Solve for x
   x = 402,119,141.56/22,507.57
6. Step 6: Final answer
   x = 17,865.95