Finding the Fourth Proportional to 52,796.16, 72,859.50 and 28,922.76

Step by Step Solution

1. Step 1: Write the proportion equation
   52,796.16 : 72,859.50 = 28,922.76 : x
2. Step 2: Convert to fraction form
   52,796.16/72,859.50 = 28,922.76/x
3. Step 3: Cross multiply
   52,796.16x = 72,859.50 × 28,922.76
4. Step 4: Simplify right side
   52,796.16x = 2,107,297,832.22
5. Step 5: Solve for x
   x = 2,107,297,832.22/52,796.16
6. Step 6: Final answer
   x = 39,913.85