Finding the Fourth Proportional to 52,636.88, 72,635.81 and 28,763.74

Step by Step Solution

1. Step 1: Write the proportion equation
   52,636.88 : 72,635.81 = 28,763.74 : x
2. Step 2: Convert to fraction form
   52,636.88/72,635.81 = 28,763.74/x
3. Step 3: Cross multiply
   52,636.88x = 72,635.81 × 28,763.74
4. Step 4: Simplify right side
   52,636.88x = 2,089,277,553.53
5. Step 5: Solve for x
   x = 2,089,277,553.53/52,636.88
6. Step 6: Final answer
   x = 39,692.28