Finding the Fourth Proportional to 12,156.04, 18,233.98 and 3,391

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.04 : 18,233.98 = 3,391 : x
2. Step 2: Convert to fraction form
   12,156.04/18,233.98 = 3,391/x
3. Step 3: Cross multiply
   12,156.04x = 18,233.98 × 3,391
4. Step 4: Simplify right side
   12,156.04x = 61,831,426.18
5. Step 5: Solve for x
   x = 61,831,426.18/12,156.04
6. Step 6: Final answer
   x = 5,086.48