Finding the Fourth Proportional to 12,123.48, 18,185.46 and 3,803.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.48 : 18,185.46 = 3,803.77 : x
2. Step 2: Convert to fraction form
   12,123.48/18,185.46 = 3,803.77/x
3. Step 3: Cross multiply
   12,123.48x = 18,185.46 × 3,803.77
4. Step 4: Simplify right side
   12,123.48x = 69,173,261.72
5. Step 5: Solve for x
   x = 69,173,261.72/12,123.48
6. Step 6: Final answer
   x = 5,705.73