Finding the Fourth Proportional to 9,018.10, 12,444.42 and 5,039.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.10 : 12,444.42 = 5,039.11 : x
2. Step 2: Convert to fraction form
   9,018.10/12,444.42 = 5,039.11/x
3. Step 3: Cross multiply
   9,018.10x = 12,444.42 × 5,039.11
4. Step 4: Simplify right side
   9,018.10x = 62,708,801.27
5. Step 5: Solve for x
   x = 62,708,801.27/9,018.10
6. Step 6: Final answer
   x = 6,953.66