Finding the Fourth Proportional to 52,628.89, 72,627.01 and 28,755.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,628.89 : 72,627.01 = 28,755.05 : x
2. Step 2: Convert to fraction form
   52,628.89/72,627.01 = 28,755.05/x
3. Step 3: Cross multiply
   52,628.89x = 72,627.01 × 28,755.05
4. Step 4: Simplify right side
   52,628.89x = 2,088,393,303.90
5. Step 5: Solve for x
   x = 2,088,393,303.90/52,628.89
6. Step 6: Final answer
   x = 39,681.50