Finding the Fourth Proportional to 12,113.34, 18,176.82 and 4,718.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,113.34 : 18,176.82 = 4,718.31 : x
2. Step 2: Convert to fraction form
   12,113.34/18,176.82 = 4,718.31/x
3. Step 3: Cross multiply
   12,113.34x = 18,176.82 × 4,718.31
4. Step 4: Simplify right side
   12,113.34x = 85,763,871.57
5. Step 5: Solve for x
   x = 85,763,871.57/12,113.34
6. Step 6: Final answer
   x = 7,080.12