Finding the Fourth Proportional to 52,628.78, 72,627.98 and 28,755.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,628.78 : 72,627.98 = 28,755.86 : x
2. Step 2: Convert to fraction form
   52,628.78/72,627.98 = 28,755.86/x
3. Step 3: Cross multiply
   52,628.78x = 72,627.98 × 28,755.86
4. Step 4: Simplify right side
   52,628.78x = 2,088,479,518.04
5. Step 5: Solve for x
   x = 2,088,479,518.04/52,628.78
6. Step 6: Final answer
   x = 39,683.22