Finding the Fourth Proportional to 12,100.88, 18,152.54 and 4,312.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.88 : 18,152.54 = 4,312.73 : x
2. Step 2: Convert to fraction form
   12,100.88/18,152.54 = 4,312.73/x
3. Step 3: Cross multiply
   12,100.88x = 18,152.54 × 4,312.73
4. Step 4: Simplify right side
   12,100.88x = 78,286,891.51
5. Step 5: Solve for x
   x = 78,286,891.51/12,100.88
6. Step 6: Final answer
   x = 6,469.52