Finding the Fourth Proportional to 52,276.94, 72,142 and 28,403.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,276.94 : 72,142 = 28,403.42 : x
2. Step 2: Convert to fraction form
   52,276.94/72,142 = 28,403.42/x
3. Step 3: Cross multiply
   52,276.94x = 72,142 × 28,403.42
4. Step 4: Simplify right side
   52,276.94x = 2,049,079,525.64
5. Step 5: Solve for x
   x = 2,049,079,525.64/52,276.94
6. Step 6: Final answer
   x = 39,196.62