Finding the Fourth Proportional to 9,290.24, 13,928.88 and 4,670.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.24 : 13,928.88 = 4,670.72 : x
2. Step 2: Convert to fraction form
   9,290.24/13,928.88 = 4,670.72/x
3. Step 3: Cross multiply
   9,290.24x = 13,928.88 × 4,670.72
4. Step 4: Simplify right side
   9,290.24x = 65,057,898.39
5. Step 5: Solve for x
   x = 65,057,898.39/9,290.24
6. Step 6: Final answer
   x = 7,002.82