Finding the Fourth Proportional to 28,696.28, 39,598.81 and 17,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   28,696.28 : 39,598.81 = 17,945.98 : x
2. Step 2: Convert to fraction form
   28,696.28/39,598.81 = 17,945.98/x
3. Step 3: Cross multiply
   28,696.28x = 39,598.81 × 17,945.98
4. Step 4: Simplify right side
   28,696.28x = 710,639,308.42
5. Step 5: Solve for x
   x = 710,639,308.42/28,696.28
6. Step 6: Final answer
   x = 24,764.17