Finding the Fourth Proportional to 12,123.02, 18,184.55 and 3,803.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.02 : 18,184.55 = 3,803.78 : x
2. Step 2: Convert to fraction form
   12,123.02/18,184.55 = 3,803.78/x
3. Step 3: Cross multiply
   12,123.02x = 18,184.55 × 3,803.78
4. Step 4: Simplify right side
   12,123.02x = 69,170,054.04
5. Step 5: Solve for x
   x = 69,170,054.04/12,123.02
6. Step 6: Final answer
   x = 5,705.68