Finding the Fourth Proportional to 7,399.81, 10,199.87 and 5,009.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,399.81 : 10,199.87 = 5,009.02 : x
2. Step 2: Convert to fraction form
   7,399.81/10,199.87 = 5,009.02/x
3. Step 3: Cross multiply
   7,399.81x = 10,199.87 × 5,009.02
4. Step 4: Simplify right side
   7,399.81x = 51,091,352.83
5. Step 5: Solve for x
   x = 51,091,352.83/7,399.81
6. Step 6: Final answer
   x = 6,904.41