Finding the Fourth Proportional to 10,178.89, 15,266.50 and 3,605.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,178.89 : 15,266.50 = 3,605.11 : x
2. Step 2: Convert to fraction form
   10,178.89/15,266.50 = 3,605.11/x
3. Step 3: Cross multiply
   10,178.89x = 15,266.50 × 3,605.11
4. Step 4: Simplify right side
   10,178.89x = 55,037,317.46
5. Step 5: Solve for x
   x = 55,037,317.46/10,178.89
6. Step 6: Final answer
   x = 5,407.01