Finding the Fourth Proportional to 52,678.47, 72,698.99 and 28,804.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,678.47 : 72,698.99 = 28,804.89 : x
2. Step 2: Convert to fraction form
   52,678.47/72,698.99 = 28,804.89/x
3. Step 3: Cross multiply
   52,678.47x = 72,698.99 × 28,804.89
4. Step 4: Simplify right side
   52,678.47x = 2,094,086,410.06
5. Step 5: Solve for x
   x = 2,094,086,410.06/52,678.47
6. Step 6: Final answer
   x = 39,752.23