Finding the Fourth Proportional to 28,118.48, 42,174.27 and 17,589.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,118.48 : 42,174.27 = 17,589.42 : x
2. Step 2: Convert to fraction form
   28,118.48/42,174.27 = 17,589.42/x
3. Step 3: Cross multiply
   28,118.48x = 42,174.27 × 17,589.42
4. Step 4: Simplify right side
   28,118.48x = 741,820,948.22
5. Step 5: Solve for x
   x = 741,820,948.22/28,118.48
6. Step 6: Final answer
   x = 26,381.98