Finding the Fourth Proportional to 13,008.72, 19,515 and 3,773.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.72 : 19,515 = 3,773.52 : x
2. Step 2: Convert to fraction form
   13,008.72/19,515 = 3,773.52/x
3. Step 3: Cross multiply
   13,008.72x = 19,515 × 3,773.52
4. Step 4: Simplify right side
   13,008.72x = 73,640,242.80
5. Step 5: Solve for x
   x = 73,640,242.80/13,008.72
6. Step 6: Final answer
   x = 5,660.84