Finding the Fourth Proportional to 9,990.95, 14,960.88 and 9,695.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,990.95 : 14,960.88 = 9,695.33 : x
2. Step 2: Convert to fraction form
   9,990.95/14,960.88 = 9,695.33/x
3. Step 3: Cross multiply
   9,990.95x = 14,960.88 × 9,695.33
4. Step 4: Simplify right side
   9,990.95x = 145,050,622.72
5. Step 5: Solve for x
   x = 145,050,622.72/9,990.95
6. Step 6: Final answer
   x = 14,518.20