Finding the Fourth Proportional to 52,847.82, 72,930.33 and 28,974.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,847.82 : 72,930.33 = 28,974.78 : x
2. Step 2: Convert to fraction form
   52,847.82/72,930.33 = 28,974.78/x
3. Step 3: Cross multiply
   52,847.82x = 72,930.33 × 28,974.78
4. Step 4: Simplify right side
   52,847.82x = 2,113,140,267.08
5. Step 5: Solve for x
   x = 2,113,140,267.08/52,847.82
6. Step 6: Final answer
   x = 39,985.38