Finding the Fourth Proportional to 52,262.75, 72,123.91 and 28,389.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,262.75 : 72,123.91 = 28,389.42 : x
2. Step 2: Convert to fraction form
   52,262.75/72,123.91 = 28,389.42/x
3. Step 3: Cross multiply
   52,262.75x = 72,123.91 × 28,389.42
4. Step 4: Simplify right side
   52,262.75x = 2,047,555,973.03
5. Step 5: Solve for x
   x = 2,047,555,973.03/52,262.75
6. Step 6: Final answer
   x = 39,178.11