Finding the Fourth Proportional to 32,689.76, 45,099.72 and 19,938.54

Step by Step Solution

1. Step 1: Write the proportion equation
   32,689.76 : 45,099.72 = 19,938.54 : x
2. Step 2: Convert to fraction form
   32,689.76/45,099.72 = 19,938.54/x
3. Step 3: Cross multiply
   32,689.76x = 45,099.72 × 19,938.54
4. Step 4: Simplify right side
   32,689.76x = 899,222,571.21
5. Step 5: Solve for x
   x = 899,222,571.21/32,689.76
6. Step 6: Final answer
   x = 27,507.78