Finding the Fourth Proportional to 49,152.86, 73,729.34 and 12,216.86

Step by Step Solution

1. Step 1: Write the proportion equation
   49,152.86 : 73,729.34 = 12,216.86 : x
2. Step 2: Convert to fraction form
   49,152.86/73,729.34 = 12,216.86/x
3. Step 3: Cross multiply
   49,152.86x = 73,729.34 × 12,216.86
4. Step 4: Simplify right side
   49,152.86x = 900,740,594.94
5. Step 5: Solve for x
   x = 900,740,594.94/49,152.86
6. Step 6: Final answer
   x = 18,325.30