Finding the Fourth Proportional to 48,222.72, 72,216.72 and 33,390

Step by Step Solution

1. Step 1: Write the proportion equation
   48,222.72 : 72,216.72 = 33,390 : x
2. Step 2: Convert to fraction form
   48,222.72/72,216.72 = 33,390/x
3. Step 3: Cross multiply
   48,222.72x = 72,216.72 × 33,390
4. Step 4: Simplify right side
   48,222.72x = 2,411,316,280.80
5. Step 5: Solve for x
   x = 2,411,316,280.80/48,222.72
6. Step 6: Final answer
   x = 50,003.74