Finding the Fourth Proportional to 9,048.75, 12,487.54 and 5,069.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.75 : 12,487.54 = 5,069.78 : x
2. Step 2: Convert to fraction form
   9,048.75/12,487.54 = 5,069.78/x
3. Step 3: Cross multiply
   9,048.75x = 12,487.54 × 5,069.78
4. Step 4: Simplify right side
   9,048.75x = 63,309,058.46
5. Step 5: Solve for x
   x = 63,309,058.46/9,048.75
6. Step 6: Final answer
   x = 6,996.44