Finding the Fourth Proportional to 52,692.64, 72,717.27 and 28,820.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,692.64 : 72,717.27 = 28,820.72 : x
2. Step 2: Convert to fraction form
   52,692.64/72,717.27 = 28,820.72/x
3. Step 3: Cross multiply
   52,692.64x = 72,717.27 × 28,820.72
4. Step 4: Simplify right side
   52,692.64x = 2,095,764,077.83
5. Step 5: Solve for x
   x = 2,095,764,077.83/52,692.64
6. Step 6: Final answer
   x = 39,773.37