Finding the Fourth Proportional to 52,221.15, 72,065.22 and 28,347.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,221.15 : 72,065.22 = 28,347.82 : x
2. Step 2: Convert to fraction form
   52,221.15/72,065.22 = 28,347.82/x
3. Step 3: Cross multiply
   52,221.15x = 72,065.22 × 28,347.82
4. Step 4: Simplify right side
   52,221.15x = 2,042,891,884.82
5. Step 5: Solve for x
   x = 2,042,891,884.82/52,221.15
6. Step 6: Final answer
   x = 39,120.01