Finding the Fourth Proportional to 52,812, 72,880.56 and 30,456

Step by Step Solution

1. Step 1: Write the proportion equation
   52,812 : 72,880.56 = 30,456 : x
2. Step 2: Convert to fraction form
   52,812/72,880.56 = 30,456/x
3. Step 3: Cross multiply
   52,812x = 72,880.56 × 30,456
4. Step 4: Simplify right side
   52,812x = 2,219,650,335.36
5. Step 5: Solve for x
   x = 2,219,650,335.36/52,812
6. Step 6: Final answer
   x = 42,029.28