Finding the Fourth Proportional to 52,285.62, 72,154.61 and 28,412.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,285.62 : 72,154.61 = 28,412.28 : x
2. Step 2: Convert to fraction form
   52,285.62/72,154.61 = 28,412.28/x
3. Step 3: Cross multiply
   52,285.62x = 72,154.61 × 28,412.28
4. Step 4: Simplify right side
   52,285.62x = 2,050,076,840.55
5. Step 5: Solve for x
   x = 2,050,076,840.55/52,285.62
6. Step 6: Final answer
   x = 39,209.19