Finding the Fourth Proportional to 9,947.40, 14,930.70 and 5,022.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.40 : 14,930.70 = 5,022.60 : x
2. Step 2: Convert to fraction form
   9,947.40/14,930.70 = 5,022.60/x
3. Step 3: Cross multiply
   9,947.40x = 14,930.70 × 5,022.60
4. Step 4: Simplify right side
   9,947.40x = 74,990,933.82
5. Step 5: Solve for x
   x = 74,990,933.82/9,947.40
6. Step 6: Final answer
   x = 7,538.75