Finding the Fourth Proportional to 9,017.90, 12,444.47 and 5,039.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.90 : 12,444.47 = 5,039.05 : x
2. Step 2: Convert to fraction form
   9,017.90/12,444.47 = 5,039.05/x
3. Step 3: Cross multiply
   9,017.90x = 12,444.47 × 5,039.05
4. Step 4: Simplify right side
   9,017.90x = 62,708,250.25
5. Step 5: Solve for x
   x = 62,708,250.25/9,017.90
6. Step 6: Final answer
   x = 6,953.75