Finding the Fourth Proportional to 32,813.28, 45,300.72 and 21,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32,813.28 : 45,300.72 = 21,654.72 : x
2. Step 2: Convert to fraction form
   32,813.28/45,300.72 = 21,654.72/x
3. Step 3: Cross multiply
   32,813.28x = 45,300.72 × 21,654.72
4. Step 4: Simplify right side
   32,813.28x = 980,974,407.40
5. Step 5: Solve for x
   x = 980,974,407.40/32,813.28
6. Step 6: Final answer
   x = 29,895.65