Finding the Fourth Proportional to 7,405.38, 10,216.50 and 4,259.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,405.38 : 10,216.50 = 4,259.88 : x
2. Step 2: Convert to fraction form
   7,405.38/10,216.50 = 4,259.88/x
3. Step 3: Cross multiply
   7,405.38x = 10,216.50 × 4,259.88
4. Step 4: Simplify right side
   7,405.38x = 43,521,064.02
5. Step 5: Solve for x
   x = 43,521,064.02/7,405.38
6. Step 6: Final answer
   x = 5,876.95