Finding the Fourth Proportional to 12,117.96, 16,704.72 and 7,399.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,117.96 : 16,704.72 = 7,399.08 : x
2. Step 2: Convert to fraction form
   12,117.96/16,704.72 = 7,399.08/x
3. Step 3: Cross multiply
   12,117.96x = 16,704.72 × 7,399.08
4. Step 4: Simplify right side
   12,117.96x = 123,599,559.66
5. Step 5: Solve for x
   x = 123,599,559.66/12,117.96
6. Step 6: Final answer
   x = 10,199.70