Finding the Fourth Proportional to 22,499.76, 33,731.01 and 13,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,499.76 : 33,731.01 = 13,116.72 : x
2. Step 2: Convert to fraction form
   22,499.76/33,731.01 = 13,116.72/x
3. Step 3: Cross multiply
   22,499.76x = 33,731.01 × 13,116.72
4. Step 4: Simplify right side
   22,499.76x = 442,440,213.49
5. Step 5: Solve for x
   x = 442,440,213.49/22,499.76
6. Step 6: Final answer
   x = 19,664.22