Finding the Fourth Proportional to 12,061.72, 18,090.14 and 3,295.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.72 : 18,090.14 = 3,295.90 : x
2. Step 2: Convert to fraction form
   12,061.72/18,090.14 = 3,295.90/x
3. Step 3: Cross multiply
   12,061.72x = 18,090.14 × 3,295.90
4. Step 4: Simplify right side
   12,061.72x = 59,623,292.43
5. Step 5: Solve for x
   x = 59,623,292.43/12,061.72
6. Step 6: Final answer
   x = 4,943.18