Finding the Fourth Proportional to 52,277.39, 72,142.91 and 28,404.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.39 : 72,142.91 = 28,404.09 : x
2. Step 2: Convert to fraction form
   52,277.39/72,142.91 = 28,404.09/x
3. Step 3: Cross multiply
   52,277.39x = 72,142.91 × 28,404.09
4. Step 4: Simplify right side
   52,277.39x = 2,049,153,566.48
5. Step 5: Solve for x
   x = 2,049,153,566.48/52,277.39
6. Step 6: Final answer
   x = 39,197.71