Finding the Fourth Proportional to 52,609.71, 72,601.32 and 28,736.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,609.71 : 72,601.32 = 28,736.39 : x
2. Step 2: Convert to fraction form
   52,609.71/72,601.32 = 28,736.39/x
3. Step 3: Cross multiply
   52,609.71x = 72,601.32 × 28,736.39
4. Step 4: Simplify right side
   52,609.71x = 2,086,299,846.03
5. Step 5: Solve for x
   x = 2,086,299,846.03/52,609.71
6. Step 6: Final answer
   x = 39,656.17