Finding the Fourth Proportional to 7,447.18, 10,276.52 and 4,089.46

Step by Step Solution

1. Step 1: Write the proportion equation
   7,447.18 : 10,276.52 = 4,089.46 : x
2. Step 2: Convert to fraction form
   7,447.18/10,276.52 = 4,089.46/x
3. Step 3: Cross multiply
   7,447.18x = 10,276.52 × 4,089.46
4. Step 4: Simplify right side
   7,447.18x = 42,025,417.48
5. Step 5: Solve for x
   x = 42,025,417.48/7,447.18
6. Step 6: Final answer
   x = 5,643.13