Finding the Fourth Proportional to 52,392.09, 72,302.72 and 28,520.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,392.09 : 72,302.72 = 28,520.36 : x
2. Step 2: Convert to fraction form
   52,392.09/72,302.72 = 28,520.36/x
3. Step 3: Cross multiply
   52,392.09x = 72,302.72 × 28,520.36
4. Step 4: Simplify right side
   52,392.09x = 2,062,099,099.26
5. Step 5: Solve for x
   x = 2,062,099,099.26/52,392.09
6. Step 6: Final answer
   x = 39,358.98