Finding the Fourth Proportional to 9,951.20, 14,900.88 and 5,311.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,951.20 : 14,900.88 = 5,311.52 : x
2. Step 2: Convert to fraction form
   9,951.20/14,900.88 = 5,311.52/x
3. Step 3: Cross multiply
   9,951.20x = 14,900.88 × 5,311.52
4. Step 4: Simplify right side
   9,951.20x = 79,146,322.14
5. Step 5: Solve for x
   x = 79,146,322.14/9,951.20
6. Step 6: Final answer
   x = 7,953.45