Finding the Fourth Proportional to 7,191.28, 9,923.29 and 5,303.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,191.28 : 9,923.29 = 5,303.89 : x
2. Step 2: Convert to fraction form
   7,191.28/9,923.29 = 5,303.89/x
3. Step 3: Cross multiply
   7,191.28x = 9,923.29 × 5,303.89
4. Step 4: Simplify right side
   7,191.28x = 52,632,038.60
5. Step 5: Solve for x
   x = 52,632,038.60/7,191.28
6. Step 6: Final answer
   x = 7,318.87