Finding the Fourth Proportional to 12,585.03, 18,875.58 and 3,698.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,585.03 : 18,875.58 = 3,698.31 : x
2. Step 2: Convert to fraction form
   12,585.03/18,875.58 = 3,698.31/x
3. Step 3: Cross multiply
   12,585.03x = 18,875.58 × 3,698.31
4. Step 4: Simplify right side
   12,585.03x = 69,807,746.27
5. Step 5: Solve for x
   x = 69,807,746.27/12,585.03
6. Step 6: Final answer
   x = 5,546.89