Finding the Fourth Proportional to 28,527.86, 42,773.56 and 13,707.29

Step by Step Solution

1. Step 1: Write the proportion equation
   28,527.86 : 42,773.56 = 13,707.29 : x
2. Step 2: Convert to fraction form
   28,527.86/42,773.56 = 13,707.29/x
3. Step 3: Cross multiply
   28,527.86x = 42,773.56 × 13,707.29
4. Step 4: Simplify right side
   28,527.86x = 586,309,591.25
5. Step 5: Solve for x
   x = 586,309,591.25/28,527.86
6. Step 6: Final answer
   x = 20,552.18