Finding the Fourth Proportional to 52,518.14, 72,475.89 and 28,644.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,518.14 : 72,475.89 = 28,644.81 : x
2. Step 2: Convert to fraction form
   52,518.14/72,475.89 = 28,644.81/x
3. Step 3: Cross multiply
   52,518.14x = 72,475.89 × 28,644.81
4. Step 4: Simplify right side
   52,518.14x = 2,076,058,098.63
5. Step 5: Solve for x
   x = 2,076,058,098.63/52,518.14
6. Step 6: Final answer
   x = 39,530.31