Finding the Fourth Proportional to 13,012.54, 19,529.76 and 5,622.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012.54 : 19,529.76 = 5,622.60 : x
2. Step 2: Convert to fraction form
   13,012.54/19,529.76 = 5,622.60/x
3. Step 3: Cross multiply
   13,012.54x = 19,529.76 × 5,622.60
4. Step 4: Simplify right side
   13,012.54x = 109,808,028.58
5. Step 5: Solve for x
   x = 109,808,028.58/13,012.54
6. Step 6: Final answer
   x = 8,438.63