Finding the Fourth Proportional to 12,031.88, 18,055.10 and 5,106.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,031.88 : 18,055.10 = 5,106.38 : x
2. Step 2: Convert to fraction form
   12,031.88/18,055.10 = 5,106.38/x
3. Step 3: Cross multiply
   12,031.88x = 18,055.10 × 5,106.38
4. Step 4: Simplify right side
   12,031.88x = 92,196,124.03
5. Step 5: Solve for x
   x = 92,196,124.03/12,031.88
6. Step 6: Final answer
   x = 7,662.66