Finding the Fourth Proportional to 52,463.31, 72,399.26 and 28,589.91

Step by Step Solution

1. Step 1: Write the proportion equation
   52,463.31 : 72,399.26 = 28,589.91 : x
2. Step 2: Convert to fraction form
   52,463.31/72,399.26 = 28,589.91/x
3. Step 3: Cross multiply
   52,463.31x = 72,399.26 × 28,589.91
4. Step 4: Simplify right side
   52,463.31x = 2,069,888,184.52
5. Step 5: Solve for x
   x = 2,069,888,184.52/52,463.31
6. Step 6: Final answer
   x = 39,454.01