Finding the Fourth Proportional to 12,406.88, 18,613.56 and 4,088.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.88 : 18,613.56 = 4,088.16 : x
2. Step 2: Convert to fraction form
   12,406.88/18,613.56 = 4,088.16/x
3. Step 3: Cross multiply
   12,406.88x = 18,613.56 × 4,088.16
4. Step 4: Simplify right side
   12,406.88x = 76,095,211.45
5. Step 5: Solve for x
   x = 76,095,211.45/12,406.88
6. Step 6: Final answer
   x = 6,133.31