Finding the Fourth Proportional to 13,150.56, 19,726.04 and 4,385.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.56 : 19,726.04 = 4,385.48 : x
2. Step 2: Convert to fraction form
   13,150.56/19,726.04 = 4,385.48/x
3. Step 3: Cross multiply
   13,150.56x = 19,726.04 × 4,385.48
4. Step 4: Simplify right side
   13,150.56x = 86,508,153.90
5. Step 5: Solve for x
   x = 86,508,153.90/13,150.56
6. Step 6: Final answer
   x = 6,578.29