Finding the Fourth Proportional to 12,445.00, 18,667.56 and 3,679.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.00 : 18,667.56 = 3,679.99 : x
2. Step 2: Convert to fraction form
   12,445.00/18,667.56 = 3,679.99/x
3. Step 3: Cross multiply
   12,445.00x = 18,667.56 × 3,679.99
4. Step 4: Simplify right side
   12,445.00x = 68,696,401.26
5. Step 5: Solve for x
   x = 68,696,401.26/12,445.00
6. Step 6: Final answer
   x = 5,520.00