Finding the Fourth Proportional to 52,228.86, 72,075.18 and 28,355.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,228.86 : 72,075.18 = 28,355.86 : x
2. Step 2: Convert to fraction form
   52,228.86/72,075.18 = 28,355.86/x
3. Step 3: Cross multiply
   52,228.86x = 72,075.18 × 28,355.86
4. Step 4: Simplify right side
   52,228.86x = 2,043,753,713.55
5. Step 5: Solve for x
   x = 2,043,753,713.55/52,228.86
6. Step 6: Final answer
   x = 39,130.74