Finding the Fourth Proportional to 13,871.07, 19,142.37 and 7,583.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,871.07 : 19,142.37 = 7,583.31 : x
2. Step 2: Convert to fraction form
   13,871.07/19,142.37 = 7,583.31/x
3. Step 3: Cross multiply
   13,871.07x = 19,142.37 × 7,583.31
4. Step 4: Simplify right side
   13,871.07x = 145,162,525.84
5. Step 5: Solve for x
   x = 145,162,525.84/13,871.07
6. Step 6: Final answer
   x = 10,465.13