Finding the Fourth Proportional to 7,488.48, 10,416.72 and 7,345.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,488.48 : 10,416.72 = 7,345.92 : x
2. Step 2: Convert to fraction form
   7,488.48/10,416.72 = 7,345.92/x
3. Step 3: Cross multiply
   7,488.48x = 10,416.72 × 7,345.92
4. Step 4: Simplify right side
   7,488.48x = 76,520,391.78
5. Step 5: Solve for x
   x = 76,520,391.78/7,488.48
6. Step 6: Final answer
   x = 10,218.41