Finding the Fourth Proportional to 52,719.39, 72,749.61 and 28,844.64

Step by Step Solution

1. Step 1: Write the proportion equation
   52,719.39 : 72,749.61 = 28,844.64 : x
2. Step 2: Convert to fraction form
   52,719.39/72,749.61 = 28,844.64/x
3. Step 3: Cross multiply
   52,719.39x = 72,749.61 × 28,844.64
4. Step 4: Simplify right side
   52,719.39x = 2,098,436,310.59
5. Step 5: Solve for x
   x = 2,098,436,310.59/52,719.39
6. Step 6: Final answer
   x = 39,803.88