Finding the Fourth Proportional to 52,263.92, 72,123 and 28,390.06

Step by Step Solution

1. Step 1: Write the proportion equation
   52,263.92 : 72,123 = 28,390.06 : x
2. Step 2: Convert to fraction form
   52,263.92/72,123 = 28,390.06/x
3. Step 3: Cross multiply
   52,263.92x = 72,123 × 28,390.06
4. Step 4: Simplify right side
   52,263.92x = 2,047,576,297.38
5. Step 5: Solve for x
   x = 2,047,576,297.38/52,263.92
6. Step 6: Final answer
   x = 39,177.63