Finding the Fourth Proportional to 7,309.80, 10,087.78 and 4,165.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,309.80 : 10,087.78 = 4,165.48 : x
2. Step 2: Convert to fraction form
   7,309.80/10,087.78 = 4,165.48/x
3. Step 3: Cross multiply
   7,309.80x = 10,087.78 × 4,165.48
4. Step 4: Simplify right side
   7,309.80x = 42,020,445.83
5. Step 5: Solve for x
   x = 42,020,445.83/7,309.80
6. Step 6: Final answer
   x = 5,748.51