Finding the Fourth Proportional to 7,063.86, 9,748.18 and 3,920.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,063.86 : 9,748.18 = 3,920.10 : x
2. Step 2: Convert to fraction form
   7,063.86/9,748.18 = 3,920.10/x
3. Step 3: Cross multiply
   7,063.86x = 9,748.18 × 3,920.10
4. Step 4: Simplify right side
   7,063.86x = 38,213,781.88
5. Step 5: Solve for x
   x = 38,213,781.88/7,063.86
6. Step 6: Final answer
   x = 5,409.76