Finding the Fourth Proportional to 52,277.05, 72,142.98 and 28,404.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.05 : 72,142.98 = 28,404.12 : x
2. Step 2: Convert to fraction form
   52,277.05/72,142.98 = 28,404.12/x
3. Step 3: Cross multiply
   52,277.05x = 72,142.98 × 28,404.12
4. Step 4: Simplify right side
   52,277.05x = 2,049,157,699.18
5. Step 5: Solve for x
   x = 2,049,157,699.18/52,277.05
6. Step 6: Final answer
   x = 39,198.04