Finding the Fourth Proportional to 28,613.98, 42,933.27 and 13,834.01

Step by Step Solution

1. Step 1: Write the proportion equation
   28,613.98 : 42,933.27 = 13,834.01 : x
2. Step 2: Convert to fraction form
   28,613.98/42,933.27 = 13,834.01/x
3. Step 3: Cross multiply
   28,613.98x = 42,933.27 × 13,834.01
4. Step 4: Simplify right side
   28,613.98x = 593,939,445.72
5. Step 5: Solve for x
   x = 593,939,445.72/28,613.98
6. Step 6: Final answer
   x = 20,756.97