Finding the Fourth Proportional to 19,009.83, 28,516.34 and 7,005.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,009.83 : 28,516.34 = 7,005.25 : x
2. Step 2: Convert to fraction form
   19,009.83/28,516.34 = 7,005.25/x
3. Step 3: Cross multiply
   19,009.83x = 28,516.34 × 7,005.25
4. Step 4: Simplify right side
   19,009.83x = 199,764,090.79
5. Step 5: Solve for x
   x = 199,764,090.79/19,009.83
6. Step 6: Final answer
   x = 10,508.46