Finding the Fourth Proportional to 52,277.38, 72,142.79 and 28,403.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.38 : 72,142.79 = 28,403.98 : x
2. Step 2: Convert to fraction form
   52,277.38/72,142.79 = 28,403.98/x
3. Step 3: Cross multiply
   52,277.38x = 72,142.79 × 28,403.98
4. Step 4: Simplify right side
   52,277.38x = 2,049,142,041.93
5. Step 5: Solve for x
   x = 2,049,142,041.93/52,277.38
6. Step 6: Final answer
   x = 39,197.49