Finding the Fourth Proportional to 23,451.50, 35,185.89 and 12,357.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,451.50 : 35,185.89 = 12,357.74 : x
2. Step 2: Convert to fraction form
   23,451.50/35,185.89 = 12,357.74/x
3. Step 3: Cross multiply
   23,451.50x = 35,185.89 × 12,357.74
4. Step 4: Simplify right side
   23,451.50x = 434,818,080.29
5. Step 5: Solve for x
   x = 434,818,080.29/23,451.50
6. Step 6: Final answer
   x = 18,541.16