Finding the Fourth Proportional to 51,043.02, 70,420.69 and 30,892.56

Step by Step Solution

1. Step 1: Write the proportion equation
   51,043.02 : 70,420.69 = 30,892.56 : x
2. Step 2: Convert to fraction form
   51,043.02/70,420.69 = 30,892.56/x
3. Step 3: Cross multiply
   51,043.02x = 70,420.69 × 30,892.56
4. Step 4: Simplify right side
   51,043.02x = 2,175,475,391.07
5. Step 5: Solve for x
   x = 2,175,475,391.07/51,043.02
6. Step 6: Final answer
   x = 42,620.43