Finding the Fourth Proportional to 15,808.50, 23,700.42 and 7,914.15

Step by Step Solution

1. Step 1: Write the proportion equation
   15,808.50 : 23,700.42 = 7,914.15 : x
2. Step 2: Convert to fraction form
   15,808.50/23,700.42 = 7,914.15/x
3. Step 3: Cross multiply
   15,808.50x = 23,700.42 × 7,914.15
4. Step 4: Simplify right side
   15,808.50x = 187,568,678.94
5. Step 5: Solve for x
   x = 187,568,678.94/15,808.50
6. Step 6: Final answer
   x = 11,865.05