Finding the Fourth Proportional to 12,123.93, 18,161.59 and 5,541.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.93 : 18,161.59 = 5,541.06 : x
2. Step 2: Convert to fraction form
   12,123.93/18,161.59 = 5,541.06/x
3. Step 3: Cross multiply
   12,123.93x = 18,161.59 × 5,541.06
4. Step 4: Simplify right side
   12,123.93x = 100,634,446.03
5. Step 5: Solve for x
   x = 100,634,446.03/12,123.93
6. Step 6: Final answer
   x = 8,300.48