Finding the Fourth Proportional to 52,351.86, 72,245.61 and 28,478.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,351.86 : 72,245.61 = 28,478.46 : x
2. Step 2: Convert to fraction form
   52,351.86/72,245.61 = 28,478.46/x
3. Step 3: Cross multiply
   52,351.86x = 72,245.61 × 28,478.46
4. Step 4: Simplify right side
   52,351.86x = 2,057,443,714.56
5. Step 5: Solve for x
   x = 2,057,443,714.56/52,351.86
6. Step 6: Final answer
   x = 39,300.30