Finding the Fourth Proportional to 52,762.86, 72,812.72 and 28,889.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,762.86 : 72,812.72 = 28,889.52 : x
2. Step 2: Convert to fraction form
   52,762.86/72,812.72 = 28,889.52/x
3. Step 3: Cross multiply
   52,762.86x = 72,812.72 × 28,889.52
4. Step 4: Simplify right side
   52,762.86x = 2,103,524,530.69
5. Step 5: Solve for x
   x = 2,103,524,530.69/52,762.86
6. Step 6: Final answer
   x = 39,867.52