Finding the Fourth Proportional to 22,956.31, 31,680.01 and 13,880.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,956.31 : 31,680.01 = 13,880.46 : x
2. Step 2: Convert to fraction form
   22,956.31/31,680.01 = 13,880.46/x
3. Step 3: Cross multiply
   22,956.31x = 31,680.01 × 13,880.46
4. Step 4: Simplify right side
   22,956.31x = 439,733,247.76
5. Step 5: Solve for x
   x = 439,733,247.76/22,956.31
6. Step 6: Final answer
   x = 19,155.22