Finding the Fourth Proportional to 12,556.32, 18,827.18 and 4,760.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.32 : 18,827.18 = 4,760.88 : x
2. Step 2: Convert to fraction form
   12,556.32/18,827.18 = 4,760.88/x
3. Step 3: Cross multiply
   12,556.32x = 18,827.18 × 4,760.88
4. Step 4: Simplify right side
   12,556.32x = 89,633,944.72
5. Step 5: Solve for x
   x = 89,633,944.72/12,556.32
6. Step 6: Final answer
   x = 7,138.55