Finding the Fourth Proportional to 13,064.57, 19,583.43 and 5,163.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.57 : 19,583.43 = 5,163.88 : x
2. Step 2: Convert to fraction form
   13,064.57/19,583.43 = 5,163.88/x
3. Step 3: Cross multiply
   13,064.57x = 19,583.43 × 5,163.88
4. Step 4: Simplify right side
   13,064.57x = 101,126,384.59
5. Step 5: Solve for x
   x = 101,126,384.59/13,064.57
6. Step 6: Final answer
   x = 7,740.51