Finding the Fourth Proportional to 28,573.82, 42,888.37 and 13,793.14

Step by Step Solution

1. Step 1: Write the proportion equation
   28,573.82 : 42,888.37 = 13,793.14 : x
2. Step 2: Convert to fraction form
   28,573.82/42,888.37 = 13,793.14/x
3. Step 3: Cross multiply
   28,573.82x = 42,888.37 × 13,793.14
4. Step 4: Simplify right side
   28,573.82x = 591,565,291.78
5. Step 5: Solve for x
   x = 591,565,291.78/28,573.82
6. Step 6: Final answer
   x = 20,703.05