Finding the Fourth Proportional to 12,287.51, 18,431.18 and 5,710.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,287.51 : 18,431.18 = 5,710.04 : x
2. Step 2: Convert to fraction form
   12,287.51/18,431.18 = 5,710.04/x
3. Step 3: Cross multiply
   12,287.51x = 18,431.18 × 5,710.04
4. Step 4: Simplify right side
   12,287.51x = 105,242,746.50
5. Step 5: Solve for x
   x = 105,242,746.50/12,287.51
6. Step 6: Final answer
   x = 8,565.02