Finding the Fourth Proportional to 51,229.04, 70,675.47 and 31,078.62

Step by Step Solution

1. Step 1: Write the proportion equation
   51,229.04 : 70,675.47 = 31,078.62 : x
2. Step 2: Convert to fraction form
   51,229.04/70,675.47 = 31,078.62/x
3. Step 3: Cross multiply
   51,229.04x = 70,675.47 × 31,078.62
4. Step 4: Simplify right side
   51,229.04x = 2,196,496,075.45
5. Step 5: Solve for x
   x = 2,196,496,075.45/51,229.04
6. Step 6: Final answer
   x = 42,876.00