Finding the Fourth Proportional to 52,432.70, 72,357.15 and 28,559.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,432.70 : 72,357.15 = 28,559.48 : x
2. Step 2: Convert to fraction form
   52,432.70/72,357.15 = 28,559.48/x
3. Step 3: Cross multiply
   52,432.70x = 72,357.15 × 28,559.48
4. Step 4: Simplify right side
   52,432.70x = 2,066,482,216.50
5. Step 5: Solve for x
   x = 2,066,482,216.50/52,432.70
6. Step 6: Final answer
   x = 39,412.09