Finding the Fourth Proportional to 7,489.86, 10,379.69 and 7,384.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,489.86 : 10,379.69 = 7,384.15 : x
2. Step 2: Convert to fraction form
   7,489.86/10,379.69 = 7,384.15/x
3. Step 3: Cross multiply
   7,489.86x = 10,379.69 × 7,384.15
4. Step 4: Simplify right side
   7,489.86x = 76,645,191.66
5. Step 5: Solve for x
   x = 76,645,191.66/7,489.86
6. Step 6: Final answer
   x = 10,233.20