Finding the Fourth Proportional to 13,053.56, 19,583.69 and 4,288.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,053.56 : 19,583.69 = 4,288.55 : x
2. Step 2: Convert to fraction form
   13,053.56/19,583.69 = 4,288.55/x
3. Step 3: Cross multiply
   13,053.56x = 19,583.69 × 4,288.55
4. Step 4: Simplify right side
   13,053.56x = 83,985,661.27
5. Step 5: Solve for x
   x = 83,985,661.27/13,053.56
6. Step 6: Final answer
   x = 6,433.93