Finding the Fourth Proportional to 9,630.90, 14,434.20 and 5,245.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,630.90 : 14,434.20 = 5,245.02 : x
2. Step 2: Convert to fraction form
   9,630.90/14,434.20 = 5,245.02/x
3. Step 3: Cross multiply
   9,630.90x = 14,434.20 × 5,245.02
4. Step 4: Simplify right side
   9,630.90x = 75,707,667.68
5. Step 5: Solve for x
   x = 75,707,667.68/9,630.90
6. Step 6: Final answer
   x = 7,860.91