Finding the Fourth Proportional to 52,518.72, 72,473.52 and 28,644.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,518.72 : 72,473.52 = 28,644.96 : x
2. Step 2: Convert to fraction form
   52,518.72/72,473.52 = 28,644.96/x
3. Step 3: Cross multiply
   52,518.72x = 72,473.52 × 28,644.96
4. Step 4: Simplify right side
   52,518.72x = 2,076,001,081.46
5. Step 5: Solve for x
   x = 2,076,001,081.46/52,518.72
6. Step 6: Final answer
   x = 39,528.78