Finding the Fourth Proportional to 52,771.31, 72,824.50 and 28,572.51

Step by Step Solution

1. Step 1: Write the proportion equation
   52,771.31 : 72,824.50 = 28,572.51 : x
2. Step 2: Convert to fraction form
   52,771.31/72,824.50 = 28,572.51/x
3. Step 3: Cross multiply
   52,771.31x = 72,824.50 × 28,572.51
4. Step 4: Simplify right side
   52,771.31x = 2,080,778,754.50
5. Step 5: Solve for x
   x = 2,080,778,754.50/52,771.31
6. Step 6: Final answer
   x = 39,430.11