Finding the Fourth Proportional to 12,111.51, 18,158.88 and 6,176.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.51 : 18,158.88 = 6,176.88 : x
2. Step 2: Convert to fraction form
   12,111.51/18,158.88 = 6,176.88/x
3. Step 3: Cross multiply
   12,111.51x = 18,158.88 × 6,176.88
4. Step 4: Simplify right side
   12,111.51x = 112,165,222.69
5. Step 5: Solve for x
   x = 112,165,222.69/12,111.51
6. Step 6: Final answer
   x = 9,261.04