Finding the Fourth Proportional to 52,513.52, 72,469.89 and 28,642.41

Step by Step Solution

1. Step 1: Write the proportion equation
   52,513.52 : 72,469.89 = 28,642.41 : x
2. Step 2: Convert to fraction form
   52,513.52/72,469.89 = 28,642.41/x
3. Step 3: Cross multiply
   52,513.52x = 72,469.89 × 28,642.41
4. Step 4: Simplify right side
   52,513.52x = 2,075,712,302.03
5. Step 5: Solve for x
   x = 2,075,712,302.03/52,513.52
6. Step 6: Final answer
   x = 39,527.20