Finding the Fourth Proportional to 7,287.60, 10,055.16 and 4,145.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,287.60 : 10,055.16 = 4,145.52 : x
2. Step 2: Convert to fraction form
   7,287.60/10,055.16 = 4,145.52/x
3. Step 3: Cross multiply
   7,287.60x = 10,055.16 × 4,145.52
4. Step 4: Simplify right side
   7,287.60x = 41,683,866.88
5. Step 5: Solve for x
   x = 41,683,866.88/7,287.60
6. Step 6: Final answer
   x = 5,719.83