Finding the Fourth Proportional to 52,439.89, 72,366.67 and 28,566.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,439.89 : 72,366.67 = 28,566.56 : x
2. Step 2: Convert to fraction form
   52,439.89/72,366.67 = 28,566.56/x
3. Step 3: Cross multiply
   52,439.89x = 72,366.67 × 28,566.56
4. Step 4: Simplify right side
   52,439.89x = 2,067,266,820.56
5. Step 5: Solve for x
   x = 2,067,266,820.56/52,439.89
6. Step 6: Final answer
   x = 39,421.65