Finding the Fourth Proportional to 13,059.24, 19,570.56 and 7,136.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,059.24 : 19,570.56 = 7,136.10 : x
2. Step 2: Convert to fraction form
   13,059.24/19,570.56 = 7,136.10/x
3. Step 3: Cross multiply
   13,059.24x = 19,570.56 × 7,136.10
4. Step 4: Simplify right side
   13,059.24x = 139,657,473.22
5. Step 5: Solve for x
   x = 139,657,473.22/13,059.24
6. Step 6: Final answer
   x = 10,694.15