Finding the Fourth Proportional to 28,196.27, 42,248.26 and 17,069.23

Step by Step Solution

1. Step 1: Write the proportion equation
   28,196.27 : 42,248.26 = 17,069.23 : x
2. Step 2: Convert to fraction form
   28,196.27/42,248.26 = 17,069.23/x
3. Step 3: Cross multiply
   28,196.27x = 42,248.26 × 17,069.23
4. Step 4: Simplify right side
   28,196.27x = 721,145,293.18
5. Step 5: Solve for x
   x = 721,145,293.18/28,196.27
6. Step 6: Final answer
   x = 25,575.91