Finding the Fourth Proportional to 13,579.98, 18,738.72 and 7,610.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,579.98 : 18,738.72 = 7,610.37 : x
2. Step 2: Convert to fraction form
   13,579.98/18,738.72 = 7,610.37/x
3. Step 3: Cross multiply
   13,579.98x = 18,738.72 × 7,610.37
4. Step 4: Simplify right side
   13,579.98x = 142,608,592.53
5. Step 5: Solve for x
   x = 142,608,592.53/13,579.98
6. Step 6: Final answer
   x = 10,501.38