Finding the Fourth Proportional to 12,061.95, 18,090.69 and 4,164.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.95 : 18,090.69 = 4,164.45 : x
2. Step 2: Convert to fraction form
   12,061.95/18,090.69 = 4,164.45/x
3. Step 3: Cross multiply
   12,061.95x = 18,090.69 × 4,164.45
4. Step 4: Simplify right side
   12,061.95x = 75,337,773.97
5. Step 5: Solve for x
   x = 75,337,773.97/12,061.95
6. Step 6: Final answer
   x = 6,245.90