Finding the Fourth Proportional to 9,018.53, 12,445.83 and 5,039.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.53 : 12,445.83 = 5,039.65 : x
2. Step 2: Convert to fraction form
   9,018.53/12,445.83 = 5,039.65/x
3. Step 3: Cross multiply
   9,018.53x = 12,445.83 × 5,039.65
4. Step 4: Simplify right side
   9,018.53x = 62,722,634.18
5. Step 5: Solve for x
   x = 62,722,634.18/9,018.53
6. Step 6: Final answer
   x = 6,954.86