Finding the Fourth Proportional to 52,513.58, 72,470.50 and 28,641.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,513.58 : 72,470.50 = 28,641.56 : x
2. Step 2: Convert to fraction form
   52,513.58/72,470.50 = 28,641.56/x
3. Step 3: Cross multiply
   52,513.58x = 72,470.50 × 28,641.56
4. Step 4: Simplify right side
   52,513.58x = 2,075,668,173.98
5. Step 5: Solve for x
   x = 2,075,668,173.98/52,513.58
6. Step 6: Final answer
   x = 39,526.31