Finding the Fourth Proportional to 13,004.01, 19,506.83 and 5,211.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,004.01 : 19,506.83 = 5,211.81 : x
2. Step 2: Convert to fraction form
   13,004.01/19,506.83 = 5,211.81/x
3. Step 3: Cross multiply
   13,004.01x = 19,506.83 × 5,211.81
4. Step 4: Simplify right side
   13,004.01x = 101,665,865.60
5. Step 5: Solve for x
   x = 101,665,865.60/13,004.01
6. Step 6: Final answer
   x = 7,818.04