Finding the Fourth Proportional to 52,485.14, 72,426.81 and 28,609.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,485.14 : 72,426.81 = 28,609.46 : x
2. Step 2: Convert to fraction form
   52,485.14/72,426.81 = 28,609.46/x
3. Step 3: Cross multiply
   52,485.14x = 72,426.81 × 28,609.46
4. Step 4: Simplify right side
   52,485.14x = 2,072,091,923.62
5. Step 5: Solve for x
   x = 2,072,091,923.62/52,485.14
6. Step 6: Final answer
   x = 39,479.59