Finding the Fourth Proportional to 52,678.83, 72,696.81 and 28,805.70

Step by Step Solution

1. Step 1: Write the proportion equation
   52,678.83 : 72,696.81 = 28,805.70 : x
2. Step 2: Convert to fraction form
   52,678.83/72,696.81 = 28,805.70/x
3. Step 3: Cross multiply
   52,678.83x = 72,696.81 × 28,805.70
4. Step 4: Simplify right side
   52,678.83x = 2,094,082,499.82
5. Step 5: Solve for x
   x = 2,094,082,499.82/52,678.83
6. Step 6: Final answer
   x = 39,751.88