Finding the Fourth Proportional to 12,601.05, 18,900.82 and 5,579.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,601.05 : 18,900.82 = 5,579.01 : x
2. Step 2: Convert to fraction form
   12,601.05/18,900.82 = 5,579.01/x
3. Step 3: Cross multiply
   12,601.05x = 18,900.82 × 5,579.01
4. Step 4: Simplify right side
   12,601.05x = 105,447,835.89
5. Step 5: Solve for x
   x = 105,447,835.89/12,601.05
6. Step 6: Final answer
   x = 8,368.18